A) Entropy of the system always increases
B) Free energy of the system always increases
C) Total entropy change is always negative
D) Total entropy change is always positive
Correct Answer: D
Solution :
A process in which all steps cannot be retraced by themselves is called spontaneous process. Entropy is a characteristics of spontaneous process and is accompanied by an increase in the disorder or "randomness" of the molecules constituting the system so for a spontaneous process, total entropy change is always positive.
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