Chemical EquilibriummediumMCQ MULTIPLE

Van't Hoff equations show the effect of temperature on equilibrium constants K_c and K_p. K_p and K_Chemical Equilibrium Chemistry Question

Question

Van't Hoff equations show the effect of temperature on equilibrium constants K_c and K_p. K_p and K_c varies with temperature according to the relations

Answer: B,C

💡 Solution & Explanation

The integrated Van't Hoff equation at constant pressure uses enthalpy change (ΔH): log(K_p2 / K_p1) = (ΔH / 2.303R) [(T₂ - T₁) / T₁T₂]. At constant volume, it uses internal energy change (ΔU or ΔE): log(K_c2 / K_c1) = (ΔU / 2.303R) [(T₂ - T₁) / T₁T₂]. Options (b) and (c) correctly represent these equations. Therefore, correct answer is B,C.

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