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Consider the following reaction at equilibrium. What will happen if the pressure

ID: 1063598 • Letter: C

Question

Consider the following reaction at equilibrium. What will happen if the pressure increased? The equilibrium constant will increase. The equilibrium will change in the direction of the reactants. The equilibrium will change in the direction of the products. No change in equilibrium is observed. The equilibrium constant will decrease. The following reaction is exothermic. Which change will shift the equilibrium to the left? raising the temperature adding SO_3 removing O_2 all of the above none of the above Consider the following reaction at equilibrium. What effect will adding CO_2 have on the system?

Explanation / Answer

(13) According to Le-chatlie's principle, increase in pressure shifts the equilibrium towards less number of gas substances.

In the given equilibrium,

number of gas reactants = 11

number of gas products = 8

(C) So, increase pressure shifts in forward direction i.e. towards products side.

(14) (D) Raising temperature, adding SO3, removing SO2 all can shift the equilbrium towards left.

Increase in temperature favours endothermic reaction. It is given backward reaction is endothermic.

Increase in concentration of product i.e SO3, shifts the equilibrium towards left.

Decrease in concentration of reactants i.e SO2 shifts the equilibrium towards left.