Solution: Consider two processes: sublimation of I2 (s) and melting of I2 (s) (Note: the latter process can occur at the same temperature but somewhat higher pressure).I2(s) ⟶ I2(g)                    I 2(s) ⟶

Consider two processes: sublimation of I₂ (s) and melting of I₂ (s) (Note: the latter process can occur at the same temperature but somewhat higher pressure).

I₂(s) ⟶ I₂(g)                    I ₂(s) ⟶ I₂(l)

Is ΔS  positive or negative in these processes? In which of the processes will the magnitude of the entropy change be greater?