entropy: gas > liquid > solid
I2 (s) → I2 (g)
solid to gas
increase in entropy
I2 (s) → I2 (l)
solid to liquid
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?
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