Question

Statement 1: The dissociation of $ PCl_5$ decreases on increasing pressure
Statement 2: An increase in pressure favours the forward reaction.

• A. If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation o f the statement 1 .
• B. Ifboth Statement 1 and Statement 2 are true but statement 2 is not the correct explanation o f the statement 1 .
• C. If Statement 1 is true but Statement 2 is false.
• D. If Statement 1 is false but Statement 2 is true.

Answer 1

Answer: (C)

$K_{p}=\left[\frac{\alpha^{2}}{1-\alpha}\right]\left[\frac{P}{1+\alpha}\right]^{1}$
An increase in pressure will decrease $\alpha$, to have $K_p$ constant and thus backward reaction occurs