Consider the following equilibrium system: `SO_2(g)+1/2O_2(g)hArr SO_3(g)` set up in a cylinder fitted with a piston. Some inert gas is added and the piston is moved outwards to keep the total gaseous pressure constant. Predict which of the following is true?A. Addition of inert gas does not affect the equilibrium.B. Less `SO_3(g)` is product.C. More `SO_3(g)` is produced.D. The system moves to new equilibrium position which cannot be predicted theoretically.

Consider the following equilibrium system: `SO_2(g)+1/2O_2(g)hArr SO_3

1.	Consider the following equilibrium system: `SO_2(g)+1/2O_2(g)hArr SO_3(g)` set up in a cylinder fitted with a piston. Some inert gas is added and the piston is moved outwards to keep the total gaseous pressure constant. Predict which of the following is true?A. Addition of inert gas does not affect the equilibrium.B. Less `SO_3(g)` is product.C. More `SO_3(g)` is produced.D. The system moves to new equilibrium position which cannot be predicted theoretically.
Answer» Correct Answer - B Whenever we add an inert gas at constant total pressure, the equilibrium shifts in that direction which tends to increase the total number of moles of gas. For this system, it is the reverse direction.

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