Q.
For the reaction $2A\rightleftharpoons B+C$, $K_c=4\times10^{-3}$. At a given time, the composition of reaction mixture is: $[A]=[B]=[C]=2\times10^{-3}$ M. Then, which of the following is correct?
A) Reaction has a tendency to go in backward direction.
B) Reaction has gone to completion in forward direction.
C) Reaction is at equilibrium.
D) Reaction has a tendency to go in forward direction.
Explanation
[Solution by Claude - not from source] $Q_c=\frac{[B][C]}{[A]^2}=\frac{(2\times10^{-3})^2}{(2\times10^{-3})^2}=1>K_c$, so the reaction proceeds backward. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.