A reaction at 450 K obeys the equilibrium expression A(g) B(g) K_c=0.20

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

A reaction at 450 K obeys the equilibrium expression A(g)⇌B(g)Kc=0.20.{\rm A(g) \rightleftharpoons B(g)}\qquad K_c=0.20. Describe the relative amounts of A and B present at equilibrium when equimolar quantities are initially mixed. Answer in one or two sentences.

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