A. The reaction will proceed to the right. B. The reaction will proceed to the l

Question

A. The reaction will proceed to the right. B. The reaction will proceed to the left. C. The reaction is at equilibrium, and no change in concentrations will occur. D. The container volume needs to be specified before a prediction can be made. E. The temperature needs to be specified before a prediction can be made. Carbon monoxide and chlorine combine in an equilibrium reaction to produce the highly toxic product, phosgene (COCl2) CO(g) + Cl2(g) COCl2(g) If the equilibrium constant for this reaction is Kc = 248, predict, if possible, what will happen when the reactants and product are combined with the concentrations shown. [CO] = [Cl2] = 0.010 M; [COCl2] = 0.070 M A. The reaction will proceed to the right. B. The reaction will proceed to the left. C. The reaction is at equilibrium, and no change in concentrations will occur. D. The container volume needs to be specified before a prediction can be made. E. The temperature needs to be specified before a prediction can be made.

Explanation / Answer

The intermediate rate equation is given by :

K = [COCl 2]/ ( [CO] * [COCl 2] )

K = 0.07 / ( 0.01 * 0.01 ) = 700 > 248

as K > Kc , so the reaction will proceed backward

i.e. the reaction will proceed to the left

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