CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
For the reaction 3H2(g)+N2(g)⇌2NH3(g), which of the following is the correct form of the equilibrium‐constant expression Kc?
(a) Kc=[H2]2[N2][NH3]3
(b) Kc=[NH3]2[H2]3[N2]
(c) Kc=[H2]3[N2][NH3]2
(d) Kc=[H2]3[N2]2[NH3]2