CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Given below are two statements. Statement I: For the equilibrium N2(g)+3H2(g)⇌2NH3(g), ΔrH<0, the backward reaction is favoured by low pressure, high temperature, and high concentration of ammonia. Statement II: For the equilibrium 2NO2(g)⇌N2O4(g), ΔrH<0, dimerisation of NO2(g) is favoured by high pressure and low temperature. In the light of the above statements, choose the correct answer.