question_answer

            For gaseous decomposition of\[PC{{l}_{5}}\], in a closed vessel the degree of dissociation \['\alpha '\], equilibrium pressure 'P' &\[{{K}_{p}}\] are related as

A) \[\alpha =\sqrt{\frac{{{K}_{p}}}{{{K}_{p}}+P}}\]

B) \[\alpha =\frac{1}{\sqrt{{{K}_{p}}+P}}\]

C) \[\alpha =\sqrt{\frac{{{K}_{p}}+P}{{{K}_{p}}}}\]

D) \[\alpha =\sqrt{{{K}_{p}}+P}\]