Thermodynamics Laws and Life Essay Example for Free

Thermodynamics Laws and Life EssayIntroduction The public is governed by the integritys of thermodynamics. In other words, it affects the everyday lives of human beings. Every moment a man exists, performs his routine activities or interacts with objects around him like every time he walks or drives a car or enlistment on an air conditioner, or practise an electrical appliance, he reap the practical benefits of thermodynamics (Sonntag 223). fit in to Sonntag in his defend Fundamentals of Physics, one excellent definition of thermodynamics is that it is the science of brawn and southward. round other cracking definition would be that thermodynamics is the science that deals with incite and clear and the properties of substance that bear a proportion to rouse and work. As I understand it, thermodynamics had something to with anything that involves the use and transfer heat or aught, and the resulting work it produces. This means that without heat or aptitude then on that point would be no work to be performed. And when work is absent then there would be no human existence for sprightliness is well-nigh tied with activities. Like all sciences, thermodynamics was established based on experimental observation. Out of this experiments evolved the three jurisprudences of thermodynamics (Sonntag 16).The Laws of Thermodynamics jump law of ThermodynamicsThe first law of thermodynamics is often called the Law of Conservation of Energy which accedes that vitality screwnot be created nor undone. Furthermore, this law suggests that since null cannot be created or destroyed it is merely transferred from one musical arrangement to another in many forms. In other words, there is an idea of energy conversion like from heat energy to mechanical energy. Because energy is not created or destroyed, in the universe as a closed system the amount of energy available is constant (there is no addition or subtraction of energy) .Energy is usually introduced into a system and from thereon undergoes energy transformation to perform some functions(Young 534-536) . In relating to life, a good illustration would be when a man takes in food (introduction of energy to the body through calorie), heat energy in the form of calorie is transform into chemical energy by his cells which in turn is transform into a mechanical energy so that a man is able to perform physiological activities like walking, dancing or talking.Man by his own self cannot create his own energy (he inescapably to eat to get energy) and that this energy through bodily processes is transform within his body to modify him to perform some bodily functions. What the first law actually is trying to say is that man clean cannot get something out of nothing like he just cannot survive without first eating some amount of food otherwise he will just fell dead. If only man can create his own energy then he does not need to eat. In the same way, the pick of other living things d epend on getting energy from outside sources, for example plants need the energy of the sun for p calefacientosynthesis. For objects, in locate for it to function, like for a plane in order for it to fly it needs the heat of combustion of its fuel to do work in propelling the plane (Young 534).Second law of ThermodynamicsWhile the first law deals with the conservation of energy, the second law tells of the direction of conservation. In other words, how or where energy transformation normally proceeds. The second law settles the question wherefore when you put ice into a hot cup of tea, heat will flow from the hot tea to the cold ice and commingle the ice in the beloved beverage illustrating the unalterable reality that heat cannot be transferred from a colder to a hotter body. It is because graphic processes that involve energy transfer must(prenominal) have one direction, and all natural processes atomic number 18 irreversible.That is why, man as human being that makes use o f many bodily energy conversions can neer go back to being an infant simply must proceed to old age. Or that a machine will go from new to old, it depreciates and lowers in value. In a sense, the second law puts limitations into how heat conversion is achieved in real life.The second law further states that the direction of thermodynamic processes is more towards from an order to a disorder state or entropy. Entropy is the measure of the disorder or randomness of energy and matter in a system, the higher is a disorder the greater is the entropy. That is why in hot and cold bodies the process proceeds from hot to cold because adding heat to a body increases its disorder because it increases bonny molecular speeds and therefore the randomness of molecular motion(Young 574). In other aspects, it is clear now why it is easy to mess up than to clean, and that the greater are the things present the messier it is.According to Young in his book University Physics, in a natural irrevers ible isolated system (one that does no work on its surroundings) entropy is always increasing, or the degree of disorder increases with time( Young 541 and579) . This can be illustrated by man getting old. Although some scientific researches had created formulas to make man look younger than his age, this only controls the pace of his getting old, but at long last man had to surrender to the irreversible natural process of body deterioration that will go through to old age and ultimately death. As man increased in age, his body weakens, his cells degenerate and eventually he dies.And when a body decays and die it cannot be renewed again and bring back to life but it will rot on the grave . What the second law of thermodynamics is saying is that there are some things that I cannot control from happening for it is a natural process that needs or must materialise and when it did occur it is impossible to undo. This reminds me in some sense of where man is heading in life. He always g o towards the future and leaves behind a past. What happened in the past he can neer undo for he can never go back to the past. That direction will be always close to him no matter how much energy he is willing to spend to retraced back to that road.Critics in the biological evolution however, claimed that the theory of evolution violates the second law of thermodynamics, since evolution involves simple life forms create on their own into more complex, more highly ordered organisms. But living things are not closed systems because they can interact with outside sources of energy like the sun and it has been shown that energy and/or cumulus flow through a system can constrain it far from equilibrium, resulting in an increase in order. The organizing work is then primarily carried on by metabolic motor of DNA, enzymes, etc( ).Third law of ThermodynamicsThe third law touches on reaching a state of absolute zero (oK) or to exclude entropy by making temperature equals to zero. At ab solute zero the system has a minimum supply internal energy (kinetic plus potential). This can only happen if all energy and matter are randomly distributed in space eradicating all thermal motion( Young 574). This however will never occur unless perhaps in few extraordinary, carefully-engineered situations. The third law of thermodynamics reinforced the fact that in life there are things that are unattainable and accepting this reality is a much better idea than to advertise the laws of life.ConclusionThe laws of thermodynamics just clearly put into much clearer terms the laws of life. Since thermodynamics is a science that deals with energy and energy transformations as well as the resulting work it produces, it has practical applications in life for life is an active use of energy. First law is a conservation of energy which states that energy cannot be created or destroyed substance that energy is already in existence and needs only to be applied to a system, example a human system, in various forms to benefit life. The second law states that in a natural process there is a direction from which the conservation follows and this is usually to a more disordered state (entropy). The third law just simply states that if absolute zero is reached then entropy will be zero, but such is an impossible occurrence.ReferencesIsaak, Mark. Five Major Misconceptions about Evolution. The Talk Origins Archive. October 1, 2003. Retrieved December 3, 2007 http//www.talkorigins.org/faq/faq-misconceptions.htmlSonntag, Richard E. and Claus Borgnakke. Fundamentals of Thermodynamics, fifth ed. New York John Wiley and Sons, Inc., 1998.Young, Hugh D. and Roger A. Freedman. University Physics, Vol. 1. 9th ed. New York Addison-Wesley Publishing Company, Inc., 1996.