Chemistry - Chemical Kinetics Question with Solution | TestHub

The reaction$\mathrm{X}\mathrm{ }+\mathrm{ }\mathrm{Y}\to \mathrm{Z}$is first order with respect to$\text{X}$and second order with respect to$\text{Y}$, initial rate of formation of$\text{Z}\text{=}\text{R}\text{mol}{\text{dm}}^{\text{3}}{\text{sec}}^{-\text{1}}$when$\text{[X]}$and$\text{[Y]}$are$\text{0}\text{.40}\text{mol}{\text{dm}}^{-\text{3}}$and$\text{0}\text{.30}\text{mol}{\text{dm}}^{-\text{3}}$respectively. If$\text{[X]}$is halved and$\text{[Y]}$is doubled, the value of the initial rate would become