JEE Main 2004 Physics question

Which of the following statements is correct for any thermodynamic system?

(1)The internal energy changes in all processes.
(2)Internal energy and entropy are state functions.Correct
(3)The change in entropy can never be zero.
(4)The work done in an adiabatic process is always zero.

Answer: (2)

Solution

Internal energy and entropy depend only on the state of the system, so they are state functions, option (2). (1) is false: in an isothermal process of an

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Question ID VK-038316