KCET2008ChemistryChemical Equilibrium

For the reaction 2 HI (g) H ₂(g)+ I ₂(g)- Q kJ , the equilibrium constant depends upon

Options

Atemperature
Bpressure
Ccatalyst
DVolume

Correct answer

A. temperature

Step-by-step solution

2 HI ( g ) H ₂( ~g )+ I ₂( ~g )- Q kJ n _ g = n _ p - n _ R =2-2=0 As the number of moles of products and reactants are equal, so equilibrium constant is not affected by any change in pressure and volume. Catalyst also does not affect the equilibrium constant. It is an endothermic reaction, hence equilibrium constant depends only upon the temperature.

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