For a first order reaction,

Question:

For a first order reaction, (A) $\rightarrow$ products, the concentration of A changes from $0.1 \mathrm{M}$ to $0.025 \mathrm{M}$ in 40 minutes. The rate of reaction when the concentration of $\mathrm{A}$ is $0.01 \mathrm{M}$ is :

  1. $1.73 \times 10^{-4} \mathrm{M} / \mathrm{min}$

  2. $1.73 \times 10^{-5} \mathrm{M} / \mathrm{min}$

  3. $3.47 \times 10^{-4} \mathrm{M} / \mathrm{min}$

  4. $3.47 \times 10^{-5} \mathrm{M} / \mathrm{m}$


Correct Option: , 3

Solution:

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