Essay on Explaination of Thermodynamics

634 Words Jan 28th, 2012 3 Pages
A Layman’s Explanation of Two Laws of Thermodynamics
Energy is encountered in many forms, such as mechanical, chemical (food and fuel), electrical, nuclear, heat, and radiant (light). Energy has the ability to bring about change or to do work. Thermodynamics is the study of energy. The field of thermodynamics studies the behavior of energy flow in natural systems. These studies have rendered two laws of thermodynamics.
The first law of thermodynamics is also known as the law of conservation of energy. This law suggests that energy can be transferred from one system to another in many forms. Also, it cannot be created or destroyed, (Encyclopedia Britannica, 2012).
Ultimately, the total amount of energy available is a constant. Einstein’s
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The laws of thermodynamics and how they are regarded in terms of energy are as such: the first law pretty much indicates that you can’t get something for nothing and the second law pretty much indicates that you cannot break-even; energy will be lesser than it was before the transfer. The first law governs the quality of energy available from an energy conversion process, whereas the second law governs the quality of the energy available. According to the first law, we will never run out of energy, but according to the second law, we can run out of high-quality (useful) energy. The second law also tells us that high-quality energy can never be used again. In terms easily understood, not only can we not get something for nothing (the first law), but we cannot ever break even in terms of energy quality (the second law). In this we can realize that we can recycle matter, but we can never recycle high-quality energy.


Boulle, P. (2012). In Encyclopedia Britannica. Retrieved from
Conservation of energy. (2012). In Encyclopedia Britannica. Retrieved from
Second law of thermodynamics. (2012). In Encyclopedia Britannica.