The value of lo g 10 K for a reaction A ⇌ B is (Given: Δ r H 298 K ∘ = − 54.07 kJ mol − 1 , Δ r S 298 K ∘ = 10 JK − 1 mol − 1 and R = 8.314 JK − 1 mol − 1 ; 2.303 × 8.314 × 298 = 5705 )

Question

The value of lo g 10 ​ K for a reaction A ⇌ B is (Given: Δ r ​ H 298 K ∘ ​ = − 54.07 kJ mol − 1 , Δ r ​ S 298 K ∘ ​ = 10 JK − 1 mol − 1 and R = 8.314 JK − 1 mol − 1 ; 2.303 × 8.314 × 298 = 5705 )

TestHub · Accepted Answer

A Δ G ∘ Δ G ∘ lo g K ​ ⇌ B = Δ H ∘ − T Δ S ∘ = − 2303 RT lo g K = − 2303 RT Δ H ∘ − T Δ S ∘ ​ = − 2303 × 8.314 × 298 − 54.07 × 1 0 3 − 298 × 10 ​ = − 5705 − 57050 ​ = 10 ​

Chemistry - Thermodynamics - II Question with Solution | TestHub

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