For a spontaneous process : - Vidyadip

MCQ

For a spontaneous process :

A
enthalpy change of the system must be negative
B
entropy change of the system must be positive
C
entropy change of the surrounding must be positive
✓
entropy change of the system plus surrounding must be positive

✓

Answer

Correct option: D.

entropy change of the system plus surrounding must be positive

For a spontaneous process the randomness of the molecules in the system increases so the entropy change of the system and surroundings must be positive.

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