Applications of second law of thermodynamics bright hub. Thermodynamics hindi l 16 second law of thermodynamics by mr. This law explains how you heat the water and make hot coffee, why the hot coffee in your mug gets cooled etc. The second law of thermodynamics is considered to be the most fundamental law of science. Applied thermodynamics videos, lectures, classes, courses, books, tutorials nptel thermodynamics videos, thermodynamics video lectures, thermodynamics video classes. There are four laws of thermodynamics, they are zeroth law of thermodynamics first law of thermodynamics second law of thermodynamics third law of thermodynamics zeroth law of thermodynamics. Som, department of mechanical engineering, iit kharagpur. Basic thermodynamics nptel online videos, courses iit. Second law of thermodynamics, entropy and availbility. Discuss the importance of second law of thermodynamics and state carnot theorems. Physical processes in nature can proceed toward equilibrium spontaneously.
The second law of thermodynamics states that processes occur in a certain direction, not in just any direction. Heat flows from a high temperature to a low temperature. This law states consider three bodies namely a, b, c, if a and b are individually in thermal equilibrium with a third body c then, the bodies a and b also will. The second law of thermodynamics helps put the first law into context. Not knowing the second law of thermodynamics is like never having read a work of shakespeare. This course is on basic engineering thermodynamics. Lec4 second law of thermodynamics nptel thermodynamics. Energy is never lost in a system, however, the energy available for work output will never be greater than the energy input. Gases expand from a high pressure to a low pressure. When this force is a mechanical force, we call the work done as a.
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