![]() ![]() ![]() T = temperature at which heat change occurs Where dq r = heat change that occurs reversibly Thermodynamic definition of entropyĬlasusious defined entropy (S) is a state function and its change is defined, The system attains equilibrium when the ΔS net is maximum. Therefore, for a spontaneous process, ΔS net of the universe (system + surroundings) increases. If the system is left to change its state spontaneously, it attains a maximum chaotic state. The higher the randomness greater will be the entropy for molecules.Ī system passes spontaneously from more orderliness to less orderliness. The concept of entropy is obtained from the unavailable energy in thermodynamics. Moreover, all the natural processes in our environment have a tendency to attain equilibrium by increasing the entropy of the system. ![]()
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