Question
In which of the following reactions the increase in pressure will favour the increase in products?
A.
$${N_{2\left( g \right)}} + {O_{2\left( g \right)}} \rightleftharpoons 2N{O_{\left( g \right)}}$$
B.
$$PC{l_{3\left( g \right)}} + C{l_{2\left( g \right)}} \rightleftharpoons PC{l_{5\left( g \right)}}$$
C.
$$PC{l_{5\left( g \right)}} \rightleftharpoons PC{l_{3\left( g \right)}} + C{l_{2\left( g \right)}}$$
D.
$$2C{O_{2\left( g \right)}} \rightleftharpoons 2C{O_{\left( g \right)}} + {O_{2\left( g \right)}}$$
Answer :
$$PC{l_{3\left( g \right)}} + C{l_{2\left( g \right)}} \rightleftharpoons PC{l_{5\left( g \right)}}$$
Solution :
Decrease in number of moles in the reaction makes it favourable at high pressure.