In a first order reaction the concentration of reactant decreases from – InterviewSolution

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1.	In a first order reaction the concentration of reactant decreases from 800 mol/dm3 to 50 mol/dm3 in 2×104 sec. The rate constant of the reaction in sec−1 is:
Answer» In a first order reaction the concentration of reactant decreases from $800 {mol/dm}^{3}$ to $50 {mol/dm}^{3}$ in $2 \times 10^{4} sec$ . The rate constant of the reaction in ${sec}^{- 1}$ is:

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