English †Letter to the Editor

English – Letter to the Editor Free Online Research Papers Dear Sir/Madam, I am writing with regard to your article on â€Å"success† published in Monday’s edition of your magazine referring to the secondary effects that a successful career might have on certain people and demanding readers like me to send in our opinions on the issue. Referring to the first question you state on your article, I suppose that if that would or would not be a bad thing depends on your own values’ scale but for mine it would mean that I am giving more important to demonstrate my society status rather than supporting other values I previously would have been defending, such as not being so egocentric. And I strongly believe that it is not people fault wanting to earn a lot of money but society’s because what we really want is not to be rich but to live happily with all the time for our enjoyment, to be free our whole time and able to chose what to do, working just if we look for it. But the problem comes when we associate that freedom with money abundance, a tendency almost impossible to avoid to a certain limit, because nobody would be able to eat and satisfy other primary needs without a basic income, taking for granted not breaking moral or legal rules. In my opinion, based on a scale of values that many may not agree with, those who earn such lots of money to maintain the lifestyle described on your article should not laugh at the face of those who lack a basic quality of life spending their fortunes on so superficial things. But I honestly recognise that they are in their complete right when doing so because by one way or another they are the ones who have earned it. Yours faithfully Student Research Papers on English - Letter to the EditorThe Effects of Illegal ImmigrationIncorporating Risk and Uncertainty Factor in CapitalEffects of Television Violence on ChildrenResearch Process Part One19 Century Society: A Deeply Divided EraComparison: Letter from Birmingham and CritoInfluences of Socio-Economic Status of Married MalesWhere Wild and West MeetTwilight of the UAWBionic Assembly System: A New Concept of Self

What Is Entropy and How to Calculate It

What Is Entropy and How to Calculate It Entropy is defined  as  the quantitative measure of disorder or randomness in a system. The concept comes out of thermodynamics, which deals with the transfer of heat energy within a system. Instead of talking about some form of absolute entropy, physicists generally discuss the change in entropy that takes place in a specific thermodynamic process. Key Takeaways: Calculating Entropy Entropy is a measure of probability and the molecular disorder of a macroscopic system.If each configuration is equally probable, then the entropy is the natural logarithm of the number of configurations, multiplied by Boltzmanns constant: S kB  ln WFor entropy to decrease, you must transfer energy from somewhere outside the system. How to Calculate Entropy In an isothermal process, the change in entropy (delta-S) is the change in heat (Q) divided by the absolute temperature (T): delta-S  Ã‚  Q/T In any reversible thermodynamic process, it can be represented in calculus as the integral from a processs initial state to its  final state of dQ/T. In a more general sense, entropy is a measure of probability and the molecular disorder of a macroscopic system. In a system that can be described by variables, those variables may assume a certain number of configurations. If each configuration is equally probable, then the entropy is the natural logarithm of the number of configurations, multiplied by Boltzmanns constant: S kB  ln W where S is entropy, kB is Boltzmanns constant, ln is the natural logarithm, and W represents the number of possible states. Boltzmanns constant is  equal to 1.38065 Ãâ€" 10−23  J/K. Units of Entropy Entropy is considered to be an extensive property of matter that is  expressed in terms of energy divided by temperature. The SI units of entropy are J/K (joules/degrees Kelvin). Entropy and the Second Law of Thermodynamics One way of stating the second law of thermodynamics is as follows: in any  closed system, the entropy of the system will either remain constant or increase. You can view this as follows: adding heat to a system causes the molecules and atoms to speed up. It may be possible (though tricky) to reverse the process in a closed system without drawing any energy from or releasing energy somewhere else to reach the initial state. You can never get the entire system less energetic than when it started. The energy doesnt have any place to go. For irreversible processes, the combined entropy of the system and its environment always increases. Misconceptions About Entropy This view of the second law of thermodynamics is very popular, and it has been misused. Some argue that the second law of thermodynamics means that a system can never become more orderly. This is untrue. It just means that to become more orderly (for entropy to decrease), you must transfer energy from somewhere outside the system, such as when a pregnant woman draws energy from food to cause the fertilized egg to form into a baby. This is completely in line with the second laws provisions. Entropy is also known as disorder, chaos, and randomness, though all three synonyms are imprecise. Absolute Entropy A related term is absolute entropy, which is denoted by S rather than ΔS. Absolute entropy is defined according to the third law of thermodynamics. Here a constant is applied that makes it so that the entropy at absolute zero is defined to be zero.