Question

*A reaction A + B → C +D + q has positive entropy change. The reaction is feasible at:*

1️⃣ High temp only
2️⃣ Low temp only
3️⃣ Any temp
4️⃣ Not feasible​

Answer 1

Answer:

For a reaction to be spontaneous, ΔG should be negative.

ΔG = ΔH- TΔS

According to the question, for the given reaction,

ΔS = positive

ΔH= negative (since heat is evolved)

⇒ ΔG= negative

Therefore, the reaction is spontaneous at any temperature. Hence, answer is (iv).