Q.

For the following three reactions 1, 2 and 3, equilibrium constants are given(1) CO(g) + H2O(g) ⇋ CO2(g) + H2(g);   K1(2) CH4(g) + H2O(g) ⇋ CO(g) + 3H2(g);   K2(3) CH4(g) + 2H2O(g) ⇋ CO2(g) + 3H2(g);   K3Which of the following relations is correct ?

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a

K1K2=K3

b

K2K3=K1

c

K3=K1=K2

d

K3.=K23 K12

answer is C.

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Detailed Solution

CO(g) + H2O(g) ⇋ CO2(g) + H2(g);   K1        ….(i) CH4(g) + H2O(g) ⇋ CO(g) + 3H2(g);   K2      ….(ii) CH4(g) + 2H2O(g) ⇋ CO2(g) + 3H2(g);   K3   ….(iii)Eq. (iii) = eq. (i) + eq. (ii)Thus, K3=K1.K2
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For the following three reactions 1, 2 and 3, equilibrium constants are given(1) CO(g) + H2O(g) ⇋ CO2(g) + H2(g);   K1(2) CH4(g) + H2O(g) ⇋ CO(g) + 3H2(g);   K2(3) CH4(g) + 2H2O(g) ⇋ CO2(g) + 3H2(g);   K3Which of the following relations is correct ?