MCQ
The degree of dissociation $(\alpha )$ of $PCl_5$ obeying the equilibrium; is $PC{l_5}\, \rightleftharpoons \,PC{l_3}\, + \,C{l_2}$ related to the pressure at equlibrium by
- A$\alpha \, \propto \,P$
- ✓$\alpha \, \propto \,\frac{1}{{\sqrt P }}$
- C$\alpha \, \propto \,\frac{1}{{{P^2}}}$
- D$\alpha \, \propto \,\frac{1}{{{P^4}}}$
