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Study of macroscopic and microscopic phenomena in chemical systems in terms of physical laws and concepts [thermodynamics, statistical mechanics, kinetic theory, quantum mechanics...].

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Is "free compression" of an ideal gas possible? [duplicate]

While reading the second law of thermodynamics, my physics book (Sears and Zemansky's University Physics) said that the total change in entropy can never be negative. Then the authors went on to say t …
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Why is Energy change occurring during the reaction at constant temperature and constant volu...

The relation that you are using for total internal energy change is only half the picture, the first law of thermodynamics relates total internal energy change to heat supplied -work done by the body, …
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