Slope of the graph between rate (Y-axis) and [A] (X-axis) for the first order reaction is equal to

• Correct answer
  A

  $\mathrm{k}$
• B

  $\frac{2.303}{\mathrm{k}}$
• C

  $\frac{\mathrm{k}}{2.303}$
• D

  $-\mathrm{k}$

Solution

For first order reaction, Rate law is $$ \begin{aligned} & \text { Rate }=\mathrm{k}[\mathrm{A}]^1 \\ & \mathrm{y}=\mathrm{m} \cdot \mathrm{x} \\ & \text { slope }=\mathrm{m}=\mathrm{k} \end{aligned} $$

Hence, the correct answer is option: 'A'.