Chemistry - Chemical Equilibrium Question with Solution | TestHub

$$\begin{array}{c}\text{In}\text{the}\text{reaction}{\text{N}}_{\text{2}}\text{(g)}\text{+}{\text{3H}}_{\text{2}}\text{(g)}\rightleftharpoons {\text{2NH}}_{\text{3}}\text{(g)}\text{+}\text{Heat.}\text{One}\text{mole}\text{of}{\text{N}}_{\text{2}}\text{reacts}\text{with}\\ \text{three}\text{moles}\text{of}{\text{H}}_{\text{2}}\text{.}\text{If}\text{at}\text{equilibrium}\text{x}\text{moles}\text{of}{\text{N}}_{\text{2}}\text{combined,}\text{then}\text{the}\text{value}\text{of}\\ \text{x}\text{in}\text{terms}\text{of}{\text{K}}_{\text{p}}\text{and}\text{the}\text{total}\text{pressure}\text{of}\text{gases}\text{at}\text{equilibrium,}\text{P,}\text{is}\text{(take}\text{x}\\ \text{ll}\text{1)}\end{array}$$