Chemistry - Chemical Kinetics Question with Solution | TestHub

If one of the reacting species is in excess, a bimolecular reaction becomes first order reaction. It is generally called as pseudo unimolecular reaction e.g.,
$\mathrm{R}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{R}\mathrm{\text{'}}+{\mathrm{H}}_2\mathrm{O}\to \mathrm{R}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{H}+\mathrm{R}\mathrm{\text{'}}\mathrm{O}\mathrm{H}$
Here rate$=\mathrm{K}[\mathrm{R}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{R}\mathrm{\text{'}}{]}^1$
Here water is in excess so it is neglected.