Dinitrogen tetroxide and nitrogen dioxide establish the equilibrium
CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Dinitrogen tetroxide and nitrogen dioxide establish the equilibrium
2NO2(g)⇌N2O4(g).
The volume of the sealed reaction vessel is suddenly reduced to one-half its original value at constant temperature. Which of the following best predicts how the system responds in order to re-establish equilibrium?
(a) It shifts to the left because an increase in pressure favors the side with more gas particles.
(b) It does not shift because the equilibrium constant, Kp, changes when the pressure is changed.
(c) It shifts to the right because fewer moles of gas are produced.
(d) It does not shift because there are an equal number of moles of gas on each side of the equation.