Explain briefly why (a) The change in entropy in a system is not always a suitable criterion

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Explain briefly why 

(a) The change in entropy in a system is not always a suitable criterion for spontaneous change;

(b) ΔrG° is so important in dealing with the question of spontaneous change, even though the conditions employed in a reaction are very often nonstandard.

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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