Which of the following statements is correct about the following system at equilibrium? $PC{L}_{\text{iel }}$ ${\mathrm{PCl}}_{\text{ice }}+{\mathrm{Cl}}_{\text{wal }}\mathrm{\Delta }\mathrm{H}$ positive ____________

A. Increase in temperature increases the yield of $\mathrm{PCl},$
B. $\mathrm{PCl}$, is less stableat high pressures.
C. The concentrations of ${\mathrm{PCl}}_1$ and ${\mathrm{Cl}}_4$ increase at higher pressures. $$
D. Decrease In pressure favours the forward reaction.  

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Correct Answer: D