The reaction H2O(l) + CO(g) ⇌ H2(g) + CO2(g) is carried out in a closed vessel

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

Problem

The reaction H2O(l) + CO(g) ⇌ H2(g) + CO2(g) is carried out in a closed vessel. Water is present as a pure liquid. In one or two sentences, explain why the concentration of H2O(l) does not appear in the expression for the equilibrium constant, KcK_c.

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