QuestionThermodynamics / criteria of spontaneity
Consider the following statements regarding the criteria for spontaneous processes in closed systems :
- If a system is isolated, its entropy cannot decrease
- If S of a closed system is fixed and no work is done, U cannot increase
- dA ≤ 0 (simple closed system, T and V constant)
Which of the statement(s) given above is/are correct ?
- (a) 1 and 2 only
- (b) 1 only
- (c) 2 and 3 only
- (d) 1, 2 and 3
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