The equilibrium of which of the following reactions will not be disturbed by the addition of an inert gas at constant volume ?

H_{2} (g) + I_{2} (g) ⇌ 2 H I (g)

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N_{2} O_{4} (g) ⇌ 2 N O_{2} (g)

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C O_{2} (g) + 2 H_{2} (g) ⇌ C H_{3} O H (g)

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C (s) + H_{2} O (g) ⇌ C O (g) + H_{2} (g)

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Solution

The correct options are
A $H_{2} (g) + I_{2} (g) ⇌ 2 H I (g)$
B $N_{2} O_{4} (g) ⇌ 2 N O_{2} (g)$
C $C O_{2} (g) + 2 H_{2} (g) ⇌ C H_{3} O H (g)$
D $C (s) + H_{2} O (g) ⇌ C O (g) + H_{2} (g)$
Adding an inert gas into a gas-phase equilibrium at constant volume does not result in a shift. This is because the addition of a non-reactive gas does not change the partial pressures of the other gases in the container. While it is true that the total pressure of the system increases, the total pressure does not have any effect on the equilibrium constant; rather, it is a change in partial pressures that will cause a shift in the equilibrium.

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Similar questions

Calculate the equilibrium constant ( $K_{p}$ ) for the reaction, $C (s) + C O_{2} (g) ⇌ 2 C O (g)$ , at $1300 K$ from the following data:
$C (s) + H_{2} O (g) ⇌ C O (g) + H_{2} (g); K_{p} (1300 K) = 3.9 a t m$

$H_{2} (g) + C O_{2} (g) ⇌ C O (g) + H_{2} O (g); K_{p} (1300 K) = 0.623 a t m$

Q. The equilibrium constant of the equation,

H_{2} O (g) + C O (g) ⇌ H_{2} (g) + C O_{2} (g)

0.44

1259 K

. The value of equilibrium constant of the equation,

H_{2} (g) + C O_{2} (g) ⇌ H_{2} O (g) + C O (g)

will be:

Q. Which of the following factors will not disturb the equilibrium state of the reaction?

H_{2} (g) + I_{2} (g) ⇌ 2 H I (g) Δ_{r} H = + 3000 cal

Q. The equilibrium of which of the following reaction will not be disturbed by the addition of an inert gas at constant volume ?

Q. From the given data of equilibrium constants of the following reactions,

C a O (s) + H_{2} (g) ⇌ C a (s) + H_{2} O (g); K = 60

C a O (s) + C O (g) ⇌ C a (s) + C O_{2} (g); K = 400

Calculate the equilibrium constant of the reaction,

C O_{2} (g) + H_{2} (g) ⇌ C O (g) + H_{2} O (g)

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