a first order reaction is found to rate constant k = 5.5×10_14 s_1 .find the half life peruod of reaction
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A first order reaction is found to have a rate constant, K=5.5×10
−14
S
−1
.
The relationship between the half life period (t
1
/2
) and the rate constant, K for first order reaction is given by the following expression.
t
1
/2
=
k
0.693
Substitute values in the above expression.
t
1
/2
=
5.5×10
−14
S
−1
0.693
t
1
/2
=1.26×10
13
S.
The half life of the reaction is 1.26×10
13
S.
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