The rate of the reaction, $2 \mathrm{NO}+\mathrm{Cl}_2 \longrightarrow 2 \mathrm{NOCl}$ is given by the rate…
The rate of the reaction, $2 \mathrm{NO}+\mathrm{Cl}_2 \longrightarrow 2 \mathrm{NOCl}$ is given by the rate equation, rate $=\mathrm{k}[\mathrm{NO}]^2\left[\mathrm{Cl}_2\right]$
The value of the rate constant can be increased by
increasing the temperature
increasing the concentration of NO
increasing the concentration of the $\mathrm{Cl}_2$