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An exothermic reaction is 'X rarr Y' is ...

An exothermic reaction is 'X rarr Y' is spontaneous in the back direction. What is the sign of 'Delta G' for the forward direction?

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The reaction is spontaneous in the backward direction, therefore, .Delta G. is positive in the forward direction. Now, forward reaction is exothermic, therefore, the entropy change for the forward direction should be negative and large .(T Delta SgtDelta H)..
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