100 of a solution in a state of dynamic equilibrium were found to contain a mixture…

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

Problem

100 cm3\text{cm}^3 of a solution in a state of dynamic equilibrium were found to contain a mixture of 5 mol of A, 2 mol of B and 5 mol of C. The equation for the reaction is A(aq)+2B(aq)⇌3C(aq)\text{A}(\text{aq}) + 2\text{B}(\text{aq}) \rightleftharpoons 3\text{C}(\text{aq}) . Calculate the equilibrium constant for the reaction. (1) 6.25 (2) 31.25 (3) 12.5 (4) 1.25

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