Question

The ∆H and ∆S for 2Ag2O(s) → 4Ag(s) + O2 (g) are given + 61.17 kJ mol-1 and + 132 JK-1mol-1 respectively. Above what temperature will the reaction be spontaneous? ​

Answer 1

Answer:

The reaction 2Ag2O(s) → 4Ag(s) + O2(g) will be spontaneous when ΔG is negative. Since ΔH is +ve and ΔS is also +ve, the reaction ΔG = ΔH - TΔS suggests that ΔG would be negative when ΔH = TΔS < 0 or T > Δ H Δ S ΔHΔS = 61170 m o l − 1 132 J K − 1 m o l − 1 61170mol−1132JK−1mol−1 = 463.4 K The given reaction will be spontaneous above a temperature of 463.4 K.Read more on Sarthaks.com - https://www.sarthaks.com/603020/theh-ands-for-2ag2o-s-4ag-s-o2-g-are-61-17-kj-mol-1-and-132-jk-1-mol-1-respectively?show=603045#a603045