Option (C) is correct At any given temperatures, delta G must be negative for it

Question

Option (C) is correct

At any given temperatures, delta G must be negative for it to be spontaneous. delta G is the change in "Gibb's Free Energy".
S is entropy and H is enthalpy.

They are related by G = H - T*S
where T = temperature in Kelvin
usually a question like yours will be like, "if it's a high temperature, what should the signs of G, H and S be to be spontaneous?" But since temperature isn't given, all that matters is that delta G must be negative to be spontaneous. Usually delta S should be positive and delta H should be negative to be spontaneous, but it doesn't have to be because they are interconnected by temperature.

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Explanation / Answer

52. In a spontaneous reaction (A) G and E are positive. (B) G and E are negative. (C) G is positive and E is negative. (D) G is negative and E is positive.

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