Suppose the following reaction is at equilibrium at a given temperature and pres

Question

Suppose the following reaction is at equilibrium at a given temperature and pressure. The pressure is then increased at constant temperature, by compressing the reaction mixture and the mixture is allowed to re-establish equilibrium. At the new equilibrium____. H_2(g) + Cl_2(g) 2HCl(g) a.) there is more hydrogen chloride then there was originally b.) there is less hydrogen chloride then there was originally c.) there is the same amount of hydrogen chloride as there was originally d.) the hydrogen and chlorine are completely used up e.) the amount of hydrogen chloride may be either larger or smaller than it was originally depending on the value of K.

Explanation / Answer

Suppose the following reaction is at equilibrium at a given temperature and pressure. The pressure is then increased at constant temperature, by compressing the reaction mixture, and the mixture is allowed to re-establish equilibrium. At the new equilibrium ____.

H2(g) + Cl2(g)-----> 2HCl(g)

Answer is (C) there is same amount of hydrogen chloride as there was originally.

because at reequilibrium , composition of Hcl does not change.

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