Volume of the flask in which species are transferred is double of the earlier flask. In which of the following cases, equilibrium will be shifted in the forward direction ?

Options

A. `N_(2)(g)+3H_(2)(g)hArr 2NH_(3)(g)`
B. `N_(2)(g)+O_(2)(g)hArr 2NO(g)`
C. `PCl_(5)(g) hArr PCl(g)+Cl_(2)(g)`
D. `2NO(g)hArrN_(2)(g)+O_(2)(g)`

Answer

C

Explanation

As volume is doubled, the pressure is reduced to one-half. Under these conditions, the equilibrium involving increase in the number of moles of gaseous components in the forward direction will be shifted forward.
Thus, eqm.
`PCl_(5)(g) hArr PCl_(3)(g)+Cl_(2)(g)`
will be shifted in the forward direction.