Which of the following gas-phase equilibria would have identical numerical values for…

CHEMISTRY · Single correct · A Level · Chemistry · Gaseous equilibria (Kp) · Gaseous equilibria (Kp)

Problem

Which of the following gas-phase equilibria would have identical numerical values for KcK_c and KpK_p at 298 K? (a) PCl5(g)  ⇌  PCl3(g)+Cl2(g)\text{PCl}_5(g)\;\rightleftharpoons\;\text{PCl}_3(g)+\text{Cl}_2(g) (b) N2O4(g)  ⇌  2 NO2(g)\text{N}_2\text{O}_4(g)\;\rightleftharpoons\;2\,\text{NO}_2(g) (c) H2(g)+Cl2(g)  ⇌  2 HCl(g)\text{H}_2(g)+\text{Cl}_2(g)\;\rightleftharpoons\;2\,\text{HCl}(g) (d) 2 NO(g)+O2(g)  ⇌  2 NO2(g)2\,\text{NO}(g)+\text{O}_2(g)\;\rightleftharpoons\;2\,\text{NO}_2(g)

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