For the reaction A ⇌ B, ΔH° = 90.0 kJ mol⁻¹ and ΔS° = 200 J mol⁻¹ K⁻¹

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

For the reaction A ⇌ B, ΔH° = 90.0 kJ mol⁻¹ and ΔS° = 200 J mol⁻¹ K⁻¹. Above what minimum temperature will the equilibrium constant K exceed 100? (R = 8.314 J mol⁻¹ K⁻¹; ln 100 ≈ 4.605) (a) ≈450 K\approx 450\,\text{K} (b) ≈600 K\approx 600\,\text{K} (c) ≈380 K\approx 380\,\text{K} (d) ≈500 K\approx 500\,\text{K}

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