For hypothetical reversible reaction 1/2A2(g)+3/2B2(g)⟶AB3(g);ΔH=−20kJ if standard entropies of A2,B2,andAB3are60,40,and50JK−1mol−1, respectively. What will be the temperature(in K) in the given reaction?
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Solution
As we know, At equilibrium,ΔStotal=0 ∴S⊖P−S⊖R=0 Also, ΔG=ΔH−TΔS=0 at eqm. so, −20,000=T(50−30−60) T=500K