Question

For the reaction $A+B\iff 3C$ at ${25}^{\circ }C$ a 3 liter vessel contains 1,2 and 4 mole of $A,B$ and $C$ respectively. Predict the direction of reaction, if $K_c$ for the reaction is 10.

• A. Backward
• B. Forward
• C. Equilibrium
• D. Any direction

Answer 1

The correct option is A Backward

$Q=\frac{[C{]}^3}{\left[A\right]\left[B\right]}=\frac{(\frac{4}{3}{)}^3}{\frac{1}{3}\times \frac{2}{3}}$

$Q=10.66$

Since $Q>K_c$ the reaction will go in the backward direction.

Option A is correct.