Question

The rate constant for the $A⟶B$ is $2\times {10}^{-4}$ $lit.{mol}^{-1}{min}^{-1}$. The conc.of A ar which rate of the reaction is $\left(1/12\right)\times {sec}^{-1}$ is:

• A. $0.25M$
• B. $(1/20\sqrt{5/3M}$
• C. $0.5M$
• D. None of these

Answer 1

The correct option is D None of these

Rate of reaction = Rate constant x conc. of A
$⟹\frac{1}{12}=2\times {10}^{-4}\times \left[A\right]$
$⟹\left[A\right]=\frac{10000}{24}$