Write the equilibrium constant expression in terms of concentration,

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

Problem

Write the equilibrium constant expression in terms of concentration, KcK_c, for the heterogeneous reaction C2H5OH(l)+12 O2(g)⇌CH3CHO(g)+H2O(l)\text{C}_2\text{H}_5\text{OH}(l) + \frac{1}{2}\,\text{O}_2(g) \rightleftharpoons \text{CH}_3\text{CHO}(g) + \text{H}_2\text{O}(l) and briefly state why any species have been omitted from the expression.

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