For the reaction at ,

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 2 NOCl(g)⇔2 NO(g)+Cl2(g)2\,\mathrm{NOCl}(g) \Leftrightarrow 2\,\mathrm{NO}(g) + \mathrm{Cl}_2(g) at 298 K298\,\text{K}, Kc=1.4×10−3K_c = 1.4 \times 10^{-3}. Four separate mixtures are prepared with the following initial values of the reaction quotient QQ: Mixture A: Q=1.0×10−5Q = 1.0 \times 10^{-5} Mixture B: Q=3.0×10−4Q = 3.0 \times 10^{-4} Mixture C: Q=1.0×10−3Q = 1.0 \times 10^{-3} Mixture D: Q=1.0×10−2Q = 1.0 \times 10^{-2} Arrange the mixtures from greatest to least in terms of their drive toward forming additional products once equilibrium is reached.

Related theory

Browse the problem library