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Consider the endothermic reaction C2H4(g) + H2O(g) → C2H5OH(g). When would you expect this reaction to...

Consider the endothermic reaction C2H4(g) + H2O(g) → C2H5OH(g). When would you expect this reaction to be spontaneous?

The answer is “at no temperature.” Can someone please explain this to me so I can understand it better? Thanks so much!

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Answer #1


ΔHo is positive since the reaction is endothermic.
ΔSo is negative because reactant has more gases than product. So, entropy of reactant is more than that of products.

ΔGo = ΔHo - T*ΔSo
For reaction to be spontaneous, ΔGo should be negative

Here,
ΔGo will always be positive
So, reaction is always non spontaneous

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