Hydrogen sulfide decomposes according to the following reaction 2H₂S(g) → 2H₂(g) + S₂(g)
For this reaction at 298K ΔS° = 78.1 J/K, ΔH° = 169.4 kJ, and ΔG° = 146.1 kJ. What is the value of ΔG° at 900 K?

Question

Quizplus · Accepted Answer

The change in Gibbs free energy (ΔG°) at a different temperature can be calculated using the equation ΔG° = ΔH° - TΔS°. At 900 K, ΔG° = 169.4 kJ - (900 K)(78.1 J/K × 1 kJ/1000 J) = 99.1 kJ.

Hydrogen Sulfide Decomposes According to the Following Reaction 2H2S(g) →

Hydrogen Sulfide Decomposes According to the Following Reaction 2H₂S(g) →