Chemical and Ionic Equilibrium - Result Question 21

21. For the reversible reaction,

$N _2(g)+3 H _2(g) \rightleftharpoons 2 NH _3(g)$

at $500^{\circ} C$, the value of $K _p$ is $1.44 \times 10^{-5}$ when partial pressure is measured in atmosphere. The corresponding value of $K _c$ with concentration in $mol / L$ is

(2000,5,1 M)

(a) $\dfrac{1.44 \times 10^{-5}}{(0.082 \times 500)^{-2}}$

(b) $\dfrac{1.44 \times 10^{-5}}{(8.314 \times 773)^{-2}}$

(c) $\dfrac{1.44 \times 10^{-5}}{(0.082 \times 773)^{2}}$

(d) $\dfrac{1.44 \times 10^{-5}}{(0.082 \times 773)^{-2}}$