The value of ΔG° at 100.0 °C for the oxidation of solid elemental sulfur to gaseous sulfur dioxide,
S (s,rhombic) + O₂(g) →SO₂(g)
Is kJ/mol. At 25.0 ^oC for this reaction, ΔH° is - 269.9 kJ/mol, ΔG° is - 300.4 kJ/mol, and
ΔS° is +11.6 J/K.

Question

Quizplus · Accepted Answer

To find ΔG° at 100.0 °C, use the equation ΔG° = ΔH° - TΔS°. Convert 100.0 °C to Kelvin (373 K) and ΔS° to kJ (0.0116 kJ/K). Calculate: ΔG° = -269.9 kJ/mol - 373 K * 0.0116 kJ/K = -274.2 kJ/mol.

The Value of ΔG° at 100