Equilibrium Question 604

Question: On a given condition, the equilibrium concentration of $ HI,,H_2 $ and $ I_2 $ are 0.80, 0.10 and 0.10 mole/litre. The equilibrium constant for the reaction $ H_2+I_2 $ ⇌ $ 2HI $ will be [MP PET 1986]

Options:

A) 64

B) 12

C) 8

D) 0.8

Show Answer

Answer:

Correct Answer: A

Solution:

$ H_2+I_2 $ ⇌ 2HI; [HI] = 0.80, $ [H_2]=0.10 $ , $ [I_2]=0.10 $

$ K_{c}=\frac{{{[HI]}^{2}}}{[H_2][I_2]}=\frac{0.80\times 0.80}{0.10\times 0.10}=64 $



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