Equilibrium Question 549
Question: If the equilibrium constant of the reaction $ 2HI $ ⇌ $ H_2+I_2 $ is 0.25, then the equilibrium constant of the reaction $ H_2+I_2 $ ⇌ $ 2HI $ would be [MP PMT 1989, 95]
Options:
A) 1.0
B) 2.0
C) 3.0
D) 4.0
Show Answer
Answer:
Correct Answer: D
Solution:
$ K_1 $ for reaction 2HI ⇌ $ H_2+I_2 $ is 0.25 $ K_2 $ for reaction $ H_2+I_2 $ ⇌ 2HI will be $ K_2=\frac{1}{K_1}=\frac{1}{0.25}=4 $ Because IInd reaction is reverse of Ist.
