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Asked by Vidya | 07 Mar, 2019, 07:27: PM
(a) It is a first order reaction.

From the given data,

At t = 300 sec

Initial concentration [A0] = 1.6 Χ 10-2 mol/lit

Final Concentration [A] = 0.8 Χ 10-2 mol/lit

We have,

The rate of reaction is

Now at t = 600 sec

Initial concentration [A0] = 0.8 Χ 10-2 mol/lit

Final Concentration [A] = 0.4 Χ 10-2 mol/lit

Rate of reaction is,

As the value of rate constant k is constant in both cases, it is the first order reaction.

(a) The half life of reaction,

For first-order reactions,

The half-life of the reaction is 300 sec.

Answered by Varsha | 08 Mar, 2019, 12:51: PM

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