In which of the following equilibrium, change in the volume of the system does not alter the number of moles?

Options

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

Answer

A

Explanation

A reaction which does not involve a change in the number of moles of gaseous reactants and products (i.e., `Deltan_(g)=0` or `n_(p)=n_(r ) )` is not affected by change in pressure.