Question

The value of ΔG° at 373 K for the oxidation of solid elemental sulfur to gaseous sulfur trioxide, 2S (s, rhombic) + 3O2 (g) → 2SO3 (g)

Answer 1

373*-166.36= -62.8 kJ

It is closer to -61.3

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Explanation:

delta H of f of SO3 = -395.2, delta H of f of O2 and S = 0)

(delta G of f of SO3 = -370.4, delta G of f of O2 and S = 0)

(S of SO3 = 256.2, S of O2 = 205.0, S of S =31.88)