Chemistry - Chemical Kinetics Question with Solution | TestHub

Formation of ammonia is given by the elementary reaction${\mathrm{N}}_2+3{\mathrm{H}}_2\to 2\mathrm{N}{\mathrm{H}}_3$. If the rate of formation of ammonia is$\frac{\mathrm{\Delta }\left[\mathrm{N}{\mathrm{H}}_3\right]}{\mathrm{\Delta }\mathrm{t}}=4\times \text{1}{\text{0}}^{-4}\mathrm{m}\mathrm{o}\mathrm{l}\hspace{0.33em}{\mathrm{l}}^{-1}{\mathrm{s}}^{-1},$then calculate value of$\frac{-\mathrm{\Delta }\left[{\mathrm{H}}_2\right]}{\mathrm{\Delta }\mathrm{t}}$