Equilibrium Question 555

Question: In which one of the following gaseous equilibria $ K_{p} $ is less than $ K_{c} $ [EAMCET 1989; MP PET 1994; Pb. PMT 2000; KCET 2001; CBSE PMT 2002]

Options:

A) $ N_2O_4 $ ⇌ $ 2NO_2 $

B) $ 2HI $ ⇌ $ H_2+I_2 $

C) $ 2SO_2+O_2 $ ⇌ $ 2SO_3 $

D) $ N_2+O_2 $ ⇌ $ 2NO $

Show Answer

Answer:

Correct Answer: C

Solution:

$ K_{p}=K_{c}{{(RT)}^{\Delta n}} $

$ \Delta n=-1 $ for reaction $ 2SO_2+O_2 $ ⇌ $ 2SO_3 $ So for this reaction $ K_{p} $ is less than $ K_{c} $ .



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