Question

At the sublimation temperature, for the process
CO₂(s) ⇋ CO₂(g)
(a) ∆H, ∆S and ∆G are all positive
(b) ∆H > 0, ∆S > 0 and ∆G < 0
(c) ∆H < 0, ∆S > 0 and ∆G < 0
(d) ∆H > 0, ∆S > 0 and ∆G = 0

Answer 1

Explanation:

At the sublimation temperature, for the process

CO₂(s) ⇋ CO₂(g)

(a) ∆H, ∆S and ∆G are all positive

(b) ∆H > 0, ∆S > 0 and ∆G < 0

(c) ∆H < 0, ∆S > 0 and ∆G < 0

(d) ∆H > 0, ∆S > 0 and ∆G = 0✔️✔️

Answer 2

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(d) ∆H > 0, ∆S > 0 and ∆G = 0