The rate constant of first order reaction whose half-life is 480 s, is
The rate constant of first order reaction whose half-life is 480 s, is
A. `1.44 xx 10^(-3)s^(-1)`
B. `1.44 s^(-1)`
C. `0.72 xx 10^(-3)s^(-1)`
D. `2.88 xx 10^(-3)s^(-1)`
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Correct Answer - A
For the first order reaction
`implies " "k=(0.693
)/(t_(1//2))=(0.693)/(480 sec)=1.44 xx 10^(-3)s^(-1)`
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