Equilibrium Question 552
Question: At a given temperature, the equilibrium constant for reaction $ PCl_5(g) $ ⇌ $ PCl_3(g)+Cl_2(g) $ is $ 2.4\times {10^{-3}} $ . At the same temperature, the equilibrium constant for reaction $ PCl_3(g)+Cl_2(g) $ ⇌ $ PCl_5(g) $ is [KCET 1992]
Options:
A) $ 2.4\times {10^{-3}} $
B) $ -2.4\times {10^{-3}} $
C) $ 4.2\times 10^{2} $
D) $ 4.8\times {10^{-2}} $
Show Answer
Answer:
Correct Answer: C
Solution:
Reaction is reversed. Hence $ K=\frac{1}{(2.4\times {10^{-3}})}=4.2\times 10^{2} $
