Chemistry - Chemical Equilibrium Question with Solution | TestHub

$\mathrm{P}\mathrm{C}{\mathrm{l}}_5\stackrel{\mathrm{\Delta }}{\to }\mathrm{P}\mathrm{C}{\mathrm{l}}_3+\mathrm{C}{\mathrm{l}}_2$,
Number of molecules in products is higher than that of reactant thus low pressure condition favours reaction in forward direction.