Chemistry - Chemical Kinetics Question with Solution | TestHub

Any first order reaction follows the equation $\log [\mathrm{A}]=\frac{-\mathrm{k}}{2.303}\mathrm{t}+\log [\mathrm{A}{]}_{\mathrm{o}}$ $\because$ it resembles equation of straight line $\begin{array}{l}\mathrm{y}=\mathrm{mx}+\mathrm{C}\\ \mathrm{y}=\log [\mathrm{A}]\text{ i.e. }{\log }_{10}\mathrm{C}\\ \mathrm{m}=\frac{-\mathrm{k}}{2.303}\text{ if }\mathrm{x}=\mathrm{t}\&\mathrm{C}=\log [\mathrm{A}{]}_0\end{array}$ hence the plot is for a $1^{\text{st }}$ order reaction.