Equilibrium Ques 22
22. The reaction quotient $(Q)$ for the reaction
$N_2(g)+3 H_2(g) \rightleftharpoons 2 NH_3(g)$
is given by $Q=\frac{[NH_3]^{2}}{[N_2][H_2]^{3}}$. The reaction will
proceed from right to left if
[2003]
(a) $Q=0$
(b) $Q=K_c$
(c) $Q<K_c$
(d) $Q>K_c$
where $K_c$ is the equilibrium constant
Show Answer
Answer:
Correct Answer: 22.(d)
Solution:
- (d) For reaction to proceed from right to left
$\quad$ $\quad$ $Q$ $\quad$ > $\quad$ $K_c$
(backward) $\quad$ (forward)
i.e the reaction will be fast in backward direction i.e $\quad r_b>r_f$.
When $Q=K$, the system is at equilibrium
$Q<K_c$, reaction shift to the right from left.
$Q>K_c$, reaction proceed from right to left.
BETA
