Chemistry - Chemical Kinetics Question with Solution | TestHub

The reaction,${\mathrm{N}}_2{\mathrm{O}}_4\left(\mathrm{g}\right)\to 2\mathrm{N}{\mathrm{O}}_2\left(\mathrm{g}\right)$, is a first order reaction, which of the following best describes the variation of concentration of${\mathrm{N}}_2{\mathrm{O}}_4$with time?