Home Chemistry Chemical Equilibrium Equilibrium State An industrial fuel, ‘water gas’, which consi…
Chemistry Chemical Equilibrium Equilibrium State Single Correct MCQ
Published on: August 14, 2026

An industrial fuel, ‘water gas’, which consists of a mixture of H 2 and CO can be made by passing steam over red-hot carbon. The reaction is

C(s) + H 2 O(g) CO(g) + H2(g), DH = +131 kJ

The yield of CO and H 2 at equilibrium would be shifted to the product side by :

A
Raising the relative pressure of the steam
B
Adding hot carbon
C
Raising the temperature
D
Reducing the volume of the system

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The correct answer is:
CHECK THE SOLUTION.

(a, c)

Addition of solids have no effect on equilibrium and temperature favours endothermic direction while increasing pressure will shift equilibrium in backward direction as ng is +ve.

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