CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
For the reaction N2(g)+3H2(g)⇌2NH3(g) with ΔH=−92kJ mol−1, compression of the reaction vessel at constant temperature increases the total pressure. In one or two sentences, explain why this compression increases the equilibrium mole fraction of NH3 in terms of the reaction quotient Q and the equilibrium constant K.