Equilibrium Question 254
Question: For the reaction $ 2NO_2{(g)} $ ⇌ $ 2N{O_{(g)}}+O_2{(g)} $
$ K_{c}=1.8\times {10^{-6}} $ at 185°C. At 185°C, the value of $ K_{c} $ for the reaction $ N{O_{( g )}}+\frac{1}{2}O_2{( g )} $ ⇌ $ NO_2{( g )} $ is [UPSEAT 2000]
Options:
A) $ 0.9\times 10^{6} $
B) $ 7.5\times 10^{2} $
C) $ 1.95\times {10^{-3}} $
D) $ 1.95\times 10^{3} $
Show Answer
Answer:
Correct Answer: B
Solution:
Reaction is reversed and halved. $ K=\sqrt{{1}/{1.8};\times {10^{-6}}}=7.5\times 10^{2} $
