Chemistry - Chemical Equilibrium Question with Solution | TestHub

For the reaction,
${\mathrm{N}}_2\left(\mathrm{g}\right)+3{\mathrm{H}}_2\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{N}{\mathrm{H}}_3\left(\mathrm{g}\right);\mathrm{\Delta }\mathrm{H}°=-\mathrm{v}\mathrm{e}$
the number of moles of${\mathrm{H}}_2$at equilibrium will increase when volume of vessel is increased.
Equilibrium will shift in backward direction when volume is increased, thus number of moles of${\mathrm{H}}_2$will increase.