Equilibrium

Equilibrium

Question

For the following three reactions a, b and c, equilibrium constants are given

a. CO (g) + H2O (g) ⇌ CO2 (g)+ H2 (g); K1
b. CH4(g) + H2O (g) ⇌ CO (g) + 3H2 (g); K2
c. CH4(g) + 2H2O (g) ⇌ CO2 (g) + 4H2 (g); K2
Which of the following relations is correct?

  • K1√K2 = K3

  • K2K3 = K1

  • K3 = K1K2

  • K3.K32 = K12

Answer

C.

K3 = K1K2

Equation (c) = equation (a) + equation (b) Thus K3 = K1.K2

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