Equilibrium Question 253
Question: Kp for the following reaction at 700 K is $ 1.3\times {10^{-3}} $ atm-1. The Kc at same temperature for the reaction $ 2SO_2+O_2 $
$ 2SO_3 $ will be [AIIMS 2001]
Options:
A) $ 1.1\ \times \ {10^{-2}} $
B) $ 3.1\ \times \ {10^{-2}} $
C) $ 5.2\ \times \ {10^{-2}} $
D) $ 7.4\ \times \ {10^{-2}} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ K_{p}=K_{c}{{(RT)}^{\Delta n}} $ R = Gas constant $ K_{c}=\frac{K_{p}}{{{(RT)}^{\Delta n}}}=\frac{1.3\times {10^{-3}}}{{{(0.0821\times 700)}^{-1}}}=7.4\times {10^{-2}} $
