Which of the following aqueous equilibria will shift toward products when the…

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

Problem

Which of the following aqueous equilibria will shift toward products when the reaction mixture is diluted with water at constant temperature? (a) CrO42−(aq)+2H+(aq)⇌Cr2O72−(aq)+H2O(l)\mathrm{CrO_4^{2-}(aq) + 2H^+(aq) \rightleftharpoons Cr_2O_7^{2-}(aq) + H_2O(l)} (b) H2(aq)+I2(aq)⇌2HI(aq)\mathrm{H_2(aq) + I_2(aq) \rightleftharpoons 2HI(aq)} (c) CO2(aq)+H2O(l)⇌H+(aq)+HCO3−(aq)\mathrm{CO_2(aq) + H_2O(l) \rightleftharpoons H^+(aq) + HCO_3^-(aq)} (d) N2(aq)+3H2(aq)⇌2NH3(aq)\mathrm{N_2(aq) + 3H_2(aq) \rightleftharpoons 2NH_3(aq)}

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