MCQ
$\text{PCl}_5(\text{g})\rightleftharpoons\text{PCl}_3(\text{g}),$ if the degree of dissociation is a at equilibrium pressure$ 'p',$ then the equilibrium constant for the reaction is:
- A$\text{K}_{\text{p}}=\frac{\alpha^2}{1+\alpha^2\text{P}}$
- B$\text{K}_{\text{p}}=\frac{\alpha^2\text{P}^2}{1-\alpha^2}$
- C$\text{K}_{\text{p}}=\frac{\alpha\text{P}^2}{1-\alpha^2}$
- ✓$\text{K}_{\text{p}}=\frac{\alpha^2\text{P}}{1-\alpha^2}$
