Question

Entropy is a thermodynamic quantity that predicts the spontaneity of a reaction. Is this statement always true? Explain your answer with meaningful arguments.

I assume the answer is no, but I cannot give a meaningful reason.
The statement is true.
dStotal = dSsurroundings + dSsystem.
If dStotal is +, the rxn is spontaneous.
If dStotal is -, the rxn is not spontaneous.

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