Question

Consider the following equilibrium system; SO,(g) + SO3(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. Predici
which of the following is true?
(1) Addition of inert gas does not affect the equilibrium. V
(2) Less SO2(g) is produced.
(3) More SO2(g) is produced.
(4) The system moves to new equilibrium position which cannot be predicted theoretically.
​

Answer 1

ANSWER

At constant pressure, when an inert gas is added to equilibrium system, volume will increase. So, the equilibrium will shift in the direction in which the number of moles of gases increase. So, in this reaction, equilibrium will shift in backward direction and more

SO_2(g)

SO

2

(g)

is produced.

Answer is option c