Heat of Vaporization Example Problem

Heat of Vaporization Example Problem Heat of vaporization is the amount of heat energy required to change the state of a substance from a  liquid into  a vapor or gas. It is also known as enthalpy of vaporization, with units typically given in joules (J) or calories (cal). This example problem demonstrates how to calculate the amount of energy required to turn a sample of water to steam. Heat of Vaporization Problem What is the heat in joules required to convert 25 grams of water into steam? What is the heat in calories?Useful information: Heat of vaporization of water 2257 J/g 540 cal/g Note:  You wont be expected to know enthalpy or heat values; they will be given in a problem or can be looked up in a table. Solution You can solve this problem  using either joules or calories for heat. Part IUse the formula  q m ·ÃŽâ€Hvwhereq heat energym massΔHv heat of vaporizationq (25 g)x(2257 J/g)q 56425 JPart IIq m ·ÃŽâ€Hfq (25 g)x(540 cal/g)q 13500 cal Answer The amount of heat required to change 25 grams of water into steam is 56425 joules or 13500 calories. A related example illustrates how to calculate the energy when water changes from solid ice into steam.

Your Opinion and Mine

Your Opinion and Mine In every wood in every spring there is a different green. ~ J. R. R. Tolkien (The Fellowship of the Ring) Recently theres been bru-ha-ha over Goodreads. About how readers and authors dont mix. How some authors dont like a lot of the reviews and threaten reviewers, and about how reviewers feel the latitude to crucify writers without ramifications. And I shook my head at the squabble amongst children. There are trolls out there. Ive banned them myself. Oh, you dont want my opinion? I was asked. This is just about siding with Hope Clark? I did not answer. I dont believe in arguing with children. As the persons posts  escalated, demeaning me and others, feeling free and unchecked, I just blocked her. No drama, no explanation, no last retort. My followers deserve better. My time is worth more. When you have a Facebook or Twitter account, or blog, or write op-eds anywhere, you are entitled to your opinion. Deliver it with intelligence and professionalism and expect feedback. But it crosses the line of maturity when one side or the other demands to be heard, demands to be right, and curses the other side for being different. You cannot win arguing with those people. You cant win arguing period. Because when you reach the level of arguing, which means you ditch adult debate, you are flexing your muscles saying your dad is bigger and can whip your dad. Which sounds like just what it is . . . playground banter.  Lately were even hearing about adults taking this squabble to the point of threats. I want to pinch their heads off, on both sides. Nobody able to keep their bloody mouths shut. So many wanting to snap and win. Tell me thiswhat do you win if you indeed best the other side? You dont, because youve exposed your ass to the world and you cant unsee whats been seen. Asses are rarely pretty. Ive received some silly reviews, silly in my opinion. I let them stand, mainly because I recognize that reviewer as having an opinion, too. I dont ask for explanation. Why? The majority of my reviews love the books. Thats my focus, not the oddities. Not the anomalies. Not the folks who feel empowered at a keyboard. Ill let the numbers speak. Obsessing over the one bad review undermines all the good ones, draws attention to it. Frankly, the good reviews prove that the bad review holds less value. All without arguing. I repeat . . . all without arguing. Ill respect your right to review as you please, and you respect my right to write as I please. My stories may swear, bleed or have sex. You may not like stories that swear, bleed or have sex. But I dont believe in the reviewer slashing the author, her life, or her beliefs over how she tells a tale. And I dont believe in an author doing the same against a reviewer. I know where you live, has no place in this profession, from either side. When you take it personal, you show the world you have a thin skin, and that your focus is not where it should be . . . on reading and writing good books.

Destination Singapore scenario Assignment Example | Topics and Well Written Essays - 2250 words

Destination Singapore scenario - Assignment Example Tourism is a labour intensive industry and expansions in this business will create immense potential for employment in the host country. Though Singapore is small in size, the country has been a hot favourite for tourists and shoppers from across the globe since a long time. The country currently ranks as the third richest nation in the world and though it does not have much in terms of natural resources, due to tourism and other businesses, Singapore has been able to fare quite well in the economic front in the past. However, in order to make the best use of the future prospects, the country has to harness its resources and align its capabilities for improvement and innovation in the travel and tourism industries so that it can sustain the steady economic growth. This paper develops a fictional tourism strategic policy for Singapore on the premise of a situation where the three nearby airports of Bangkok, Kuala Lumpur and Bali are closed down due to natural disasters, which makes th e country the only gateway to other South East Asian countries. It will dwell on various policies that need to be implemented so that the country can optimise its potential as a tourist destination, to cater to the extra demand, over the next five years, in a sustainable manner. Innovations in Singapore Tourism: Strategic Policies and Planning Framework Introduction: Singapore is one of the top ranking economies in Asia Pacific region, with sophisticated infrastructures both in ground and air transport, which rank respectively â€Å"2nd and 14th† as well as a high quality human resources that ranks â€Å"2nd† in the region (Blanke & Chiesa, 2013, p.xxi). In addition, the country ranks as first among all economies for its â€Å"policy environment† that is most supportive with its rules and regulations encouraging travel and tourism industries (p.xxi). Data relating to visiting tourists shows a rising trend with â€Å"11.6 million in 2010 and 13.2 million in 2011 † with revenue earnings of â€Å"S$ 18.9 billion in 2010† and â€Å"$ 22.4 billion† in 2011 (Annual Report of Tourism Statistics, 2012, p.1). Therefore, it transpires that despite the economic down trend across the world, tourism industry in Singapore has been growing in a fast paced manner. The hotel industry in the country also has remained in a strong position over the years with the rates of occupancy up to â€Å"85%† in 2010 and â€Å"86%† in 2011 (Table-34, p.77). Currently, the country has a total of â€Å"154† gazetted hotels with â€Å"40,759† rooms available for letting out (p.83). The land transport system here comprises road and rail services with Express Ways of 161 km, Arterial Roads of 645 km, Collector Roads of 557 km and Local Access Roads of 2,048 km (Singapore Land Transport Statistics as at End of 2011, p.58). In addition, they have Rapid Transit Systems (RTS) with MRT of 146.5 and LRT of 28.8 km, with 97 MRT statio ns and 34 LRT stations, catering to a resident population of 5,184,000 and 13,171,000 visitors (p.58). Air traffic system in the country has accounted for the arrival of â€Å"150,827† aircrafts during the year 2011, carrying 22,778,000 passengers while sea transport has registered the arrival of â€Å"127,998† vessels in 2011 (Year Book of Statistics Singapore, 2012, p.181). This study envisages the development of a new tourism strategic policy and planning framework for Singapore to cater to an extra demand arising from a

Police work Essay Example | Topics and Well Written Essays - 1000 words

Police work - Essay Example In addition, the officers have the duty of controlling traffic and executing any other duties as designated by their commanders (Perez, 2011). The process of becoming a police officer varies from one country to the other because the laws of different countries have set different of becoming a police officer. There are four basic requirements to be fulfilled by any person who want to become a police officer. The first requirement is that one must have attained a legal age of 21 years, be a citizen of the United State and have a valid driving licence. Secondly, one must be morally upright. This means that a person who intends to become a police officer should not have been convicted of crime and felonies during his/her teenage life. Therefore, teenagers are urged to shun any form of crime and domestic misdemeanour because it may disqualify them of becoming a police officer. The third step entails having a good credit record. This means that for one to be considered to a position of a police officer one should have clean credit record. This may involve avoiding debts accumulation and paying creditors promptly. It is therefore , vital for a person with a passion of becoming a police officer to have a good credit rating to qualify for a position of a police officer. The forth step involves having a good job experience. This involves having any little experience that may help the recruiters to see that one is responsible person and can be in a position to work both as an individual as well as a team member. The fifth requirement involves being physically feet according to the health standards for all police officers. For example, police officers are expected to have muscle reflex, being able to run short and long g distances as well as being to lift heavy objects. The sixth requirement involves understanding what the work of a police officer is as well as how they should relate with the general public (Northeast Editing,

Diamonds :: essays research papers

A Diamond is one of the two natural minerals that are produced from carbon. The other mineral is Graphite. Even though both of these minerals are produced from the same element ,carbon, they have totally different characteristics. One of the most obvious difference is that Diamond is hard and Graphite is soft. The Diamond is considered to be the most hardest substance found in nature. It scores a perfect ten in hardness. Because of its hardness a tiny Diamond is used as a cutting and drilling tool in industry. Even the Greeks called the Diamond â€Å"adamas† which means unconquerable. Diamonds also conducts heat better than any other mineral .   Ã‚  Ã‚  Ã‚  Ã‚   Diamonds come in several different color shades such as, yellow, blue, green, or pink. One reason why a Diamond has different colors is through the processes involving heat and radiation. Another reason is that 99.5% of a Diamond is Carbon and the rest are different trace elements. These 0.5% of elements are the reason why a Diamond has different color shades. For example Nitrogen causes it to have a yellow tint , and Boron a blue shade. The pink color in some Diamonds are thought to be caused by deformation of the atomic structure of the diamond crystal. A pure Diamond , which would be 100% carbon, is colorless Diamonds were created million years ago, when the earth was formed, the material experienced pressure of 5million times the atmosphere at sea level and temperatures between 1000~1200degreesC. These conditions caused carbon in the layers inside the planet to crystallize into diamonds. The diamonds moved up to the earth’s surface through volcano eruptions. This is why many Diamond mines are near volcanoes. Diamonds occur in two types of rock: Kimberlite and Lamprolite. Diamonds are mostly found in South Africa, India, Brazil, Russia, Australia, and Arkansas. Right now about 100million carats are mined each year. Today the largest cut Diamond in the world is the Cullian I at 530.2ct . The unit cell of a Diamond is cube. Five carbon atoms form tetrahedra at the cube corners , at the centers of each of the cube faces, and at four sites within the cube. The carbon atoms are located at the center of each tetrahedron . The carbon tetrahedra are covalently bonded, which explains why diamonds are extremely hard. The toughness of the Diamond comes from four planar directions of weakness , it is called octahedral cleavage .

Beauty Pageants and Our Children Essay

Alost 3 million children, most of them girls, from the ages of 6 months and 17 years compete in beauty pageants annually in America. Competition can be local and national and they compete in categories such as swimwear, talent, costume of your choice, and eveningwear. This is an industry where mothers give her daughter energy drinks for a boost before pageants, 3-year-olds don fake fingernails, and parents regularly spend five thousand dollars on a child’s pageant outfit (O’Neill 1). Beauty pageants have negative consequences on America’s youth contestants through the pressure to be â€Å"perfect,† media influences, and child sexualization, which results in exhaustion, eating disorders, and body image issues in their future. In recent years, the child beauty pageant industry has exponentially grown in size and popularity. This growth is mainly due to television shows, such as Toddlers & Tiaras and Here Comes Honey Boo Boo that may be entertaining but exploit little girls in the process. These reality shows expose the behind-the-scenes horrors of beauty pageants that most people were oblivious too before. These shows have also revealed the use of energy supplements to improve the contestants performance, age-inappropriate costumes, intense and painful beauty regimens. Alana Thompson, featured on TLC’s Toddlers & Tiaras, is a seven-year-old beauty queen, nicknamed Honey Boo Boo, whose mother frequently gives her the infamous â€Å"Go-Go Juice†, a mix of Red Bull and Mountain Dew, before pageants. It is common knowledge that energy drinks are bad for one’s health, but every nutritionist in the world would agree that Red Bull for a seven-year-old is tremendously dangerous. Alana now has her own reality television show Here Comes Honey Boo Boo. Parents are not only harming their children’s health but also their moral. On one Toddlers & Tiaras episode, Paisley, merely 3-years-old, sported a costume based on the prostitute in Pretty Woman. In a 2011 episode, Madiysyn â€Å"Mady† Verst‘s mother filled out the then-4-year-old’s chest with fake breasts and an impossibly round behind for a Dolly Parton routine. Experts in child development argue the difference between playing dress-up and making a profession out of it. â€Å"Little girls are supposed to play with dolls, not be dolls,† says Mark Sichel, a New York-based licensed clinical social worker, who calls the extreme grooming common at pageants â€Å"a form of child abuse.† Playing dress-up â€Å"is normal and healthy, but when it’s demanded, it leaves the child not knowing what they want,† he says. Accentuating their appearance with such accoutrements as fake hair, teeth, spray tans and breast padding â€Å"causes the children tremendous confusion, wondering why they are not okay without those things† (Triggs 1). All of this confusion and body image problems is instilled in child beauty pageant contestants at a very young age. Ultimately, this leads to eating disorders, psychological issues, and relationship problems in the contestants’ later years. A study conducted at the University of Minnesota by Anna Wonderlich, Diann Ackard, and Judith Henderson showed the correlation between childhood beauty pageants and adult disordered eating, body dissatisfaction, depression, and self-esteem (Wonderlich 1). The results of this scientific experiment proved that for all the tests that assessed characteristics of anorexia and bulimia nervosa scores for those who had participated in beauty pageants were higher than scores for those who had not participated (Wonderlich 5). These results indicate a significant association between childhood beauty pageant participation and increased body dissatisfaction, difficulty trusting interpersonal relationships, and greater impulsive behaviors, and indicate a trend toward increased feelings of ineffectiveness (Wonderlich 6). Another example of the destructive effects of childhood beauty pageant is Brooke Breedwell, now nineteen, who was a child pageant contestant and a star of the television documentary, â€Å"Painted Babies.† â€Å"As a girl, [Breedwell] suffered from stress and anxiety while striving for an unrealistic standard of perfection. [In various interviews], she explains that her mother’s ambition, coupled with her own obsessive drive to win, resulted in severe social and psychological consequences† (Ahrens 86). Another negative consequence of childhood beauty pageants is the disturbing sexualization of young girls that steals away their treasured innocence–as if eating disorders and body image problems were not enough. Former child beauty queen Nicole Hunter confirms this theory by explaining that â€Å"dressing and acting like a woman at a young age compelled her to prematurely confront her sexuality, which in turn lowered her self-esteem† (Liberman 741). The child pageant circuit concentrates on the ideals of perfection and beauty, with an accompanying focus on sexuality. Innocent girls dressed in skimpy costumes parade and dance, remove pieces of their outfits and wink at judges. Basically, young beauty queens are taught to flirt and manipulate their early sexuality in order to win. Though frequently condemned for such eccentric and damaging practices, the child pageant industry has been gaining success and extensive popularity (Liberman 745). Additionally, reporter Richard Goldstein investigated the JonBenet Ramsey, a child beauty queen, murder case and brought to the surface both our horror at how effectively a child can be constructed as a sexual being and our guilt at the please we take in such a sight (Giroux 50). Her dynamic role in pageants was vastly examined by media after the murder. After JonBenet’s highly publicized murder, the problems of child beauty pageants, especially the degradation of young girls, are first brought to society’s attention. Although many pageant parents argue that the press unfairly focused on the connection of beauty pageants to Jon Benet’s murder, these defenders rarely address the concerns of robbing a child of her virtue by depicting young girls as â€Å"sexualized nymphets.† They have little to say about what adolescents actually gain in pageants. Those in favor of the pageants overlook how a child might see herself and her ability to form relationships with society when her feelings of self-worth is defined solely through a belief that beauty is one-dimensional and patronizing (Giroux 54-55). No five-year-old child enjoys getting her hair ripped out and teased, spending hours each day practicing exhausting dance routines, or devoting every weekend traveling to pageants rather than playing with friends. It is the beauty pageant contestant’s mother who forces them to endure these strenuous and sometimes painful rituals in order to achieve their own satisfaction. When feminist writer-performer, StaceyAnn Chin first saw Toddlers & Tiaras she was â€Å"flabbergasted by the parents who were so invested in these contests they got angry if their girls showed any signs of flagging.† In regards to the infamous pageant moms, Chin states that, † the pageant reminded me a little of dog shows–tiny, powerless competitors trained to do as they are told, with trainers who exploit their charges to gain fame and fortune and live out some archaic dream they once had for themselves† (Chin 1). The vast majority of pageant moms deny the harmful effects beauty pageants have own their child. Pageant mothers often â€Å"neutralize† their deviant behavior of enrolling their daughter in pageants by claiming pageants help their daughter rather than hurt. Also, mothers deny their own responsibility as the accountable parent by claiming that her daughter chooses to participate in beauty pageants (Pannell 68). Every single pageant mom asked in a study about childhood beauty pageants talked about competitors winning prize money, crowns, trophies and gifts in child beauty pageants (Mosel-Talavera 81). Some mothers deceptively sign their children up for pageants to exploit their daughters financially. One pageant mother says that there is a very infamous pageant child that always wins a large sum of money, ‘There is one little girl down South – she’s the daughter of one of the biggest known photographers. In six weeks’ time she went from pageant to pageant and won like $40,000.’ In the summer of 2005, there was another child, whose mother also owns a pageant business, who won three cars at pageants (Levey 204-205). These examples clearly reveal the evils of parents exploiting their children in pageants for their own selfish rewards. In childhood beauty pageants, the pressure from parents, influence from the media, and the desire to win all lead to disastrous consequences for the participants, which will stay with them for the rest of their life. Eating disorders, body image issues, and an early loss of innocence are just a few of the consequences these precious girls will have to deal with in their lifetime. No child should have to struggle with these problems at such a young age. Although little girls dressed up in frilly dresses and tiaras may be cute, there is a fine line between a fun beauty pageant and ruining a young girls life.

How A Buyer Has Numerous Benefit Options For The Procedure...

A buyer has numerous benefit options to choose from. The following are the suggested options: 1. A Center of Excellence (COE) Only Benefit: Under this benefit design, patients are signified to a COE for evaluation and determined to see whether they are applicable aspirants for a knee or hip replacement procedure. If the candidate qualifies for the procedure, the benefit is enclosed and the provider is paid a bundled payment. If an individual does not qualify for the procedure, there is no insurance benefit for the procedure at any facility. 2. Reference Pricing: Under reference pricing, a benefit price is established for a set of services. Some providers will bill at or below the reference price; some providers will bill†¦show more content†¦These approaches give the patient a broad choice of providers and some financial incentive – in the form of lower cost-sharing – to seek care from a provider participating in the bundled payment program. However, to create enough â€Å"steerage† to these providers, the incentives will have to be significant; providers may think twice about participating in bundled payment if patients still have a broad choice of providers. Purchasers are likely to be more successful at getting providers to accept bundled payment if providers can expect greater patient volume when they do. To achieve maximum savings and better patient outcomes by driving volume to high-value providers, CPR recommends benefit design approaches that create incentives for enrollees to seek care from them. Options 1 and 2 above are examples of benefit designs that are more likely to yield higher results than those strategies that offer modest benefit design differentials between a bundled payment provider and a non-bundled payment provider. In the end, determining your benefit design strategy comes first; designing and developing the network will follow. Employee education and benefit designs that either encourage or require the use of treatment decision support (TDS) tools can help consumers feel better about their treatment decisions and prepare them for more aggressive benefit strategies that steer patients