Thermodynamics is one of the basic topics in physics and chemistry, which deals with heat and temperature and how they are related to energy and work. Thermodynamics is applied in many fields of science and engineering. In other words, most scientific and engineering works cannot be done or understood without the knowledge of thermodynamics.
Thermodynamics basically deals with the heat, pressure, work and energy. In other words, only by understanding the concepts of thermodynamics did great inventions like steam engine and other heat based engines were invented. Thus, one can safely say that knowledge of thermodynamics plays a greater role in understanding both physics and chemistry.
There are certain laws that govern thermodynamics and these laws have been recognized by various experiments over years of careful observation. These are popularly known as the three laws of thermodynamics.
- First Law of Thermodynamics: The increase in internal energy of a closed system is equal to the difference of the heat supplied to the system and the work done by it: ΔU = Q – W
- Second Law of Thermodynamics: Heat cannot spontaneously flow from a colder location to a hotter location.
- Third Law of Thermodynamics: As a system approaches absolute zero the entropy of the system approaches a minimum value.
In order to better understand these laws, you need to first understand the concepts of closed system, open system, entropy, etc.
Today, the application of thermodynamics can be found in many ways that it is one of the basic criteria to understand physics and chemistry. A student who masters thermodynamics can be sure of scoring good grades in physics and chemistry.
But, it is very difficult to learn thermodynamics on your own. You need a thermodynamics expert to help you in not only understanding the terms but also to teach you how to solve complex problems in thermodynamics.
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