For which of the following reversible reactions is the relationship K_p = K_c (RT)⁻¹ correct?

Step-by-step solution

The relationship between K_p and K_c is given by K_p = K_c (RT)^ n_g , where n_g is the difference between the sum of stoichiometric coefficients of gaseous products and gaseous reactants. Given K_p = K_c (RT)⁻¹ , we require n_g = -1 . For H _ 2(g) + Cl _ 2(g) 2 HCl _ (g) , n_g = 2 - (1 + 1) = 0 . For CaCO _ 3(s) CaO _ (s) + CO _ 2(g) , n_g = 1 - 0 = 1 . For 2 NO _ (g) + O _ 2(g) 2 NO _ 2(g) , n_g = 2 - (2 + 1) = -1 . For N _ 2(g) + 3 H _ 2(g) 2 NH _ 3(g) , n_g = 2 - (1 + 3) = -2 . Thus, the reaction 2 NO _ (g) + O