Question
Question: For reaction \(Ag_{2}O(s) \rightarrow 2Ag(s) + \frac{1}{2}O_{2}(g)\) the value of \(\Delta H = 30.56...
For reaction Ag2O(s)→2Ag(s)+21O2(g) the value of ΔH=30.56kJmol−1 and ΔS=0.066kJmol−1K−1.
Temperature at which free energy change for reaction will be zero is
A
373 K
B
413 K
C
463 K
D
493 K
Answer
463 K
Explanation
Solution
ΔG=ΔH−TΔS
ΔH=30.56kJmol−1; ΔS=0.066kJmol−1K−1; ΔG=0 at equilibrium; T=?
∴ΔH=TΔS or 30.56=T×0.066
T=463K