1.

The rate constant of first order reaction whose half-life is 480 s, is

Answer»

`1.44 xx 10^(-3)s^(-1)`
`1.44 s^(-1)`
`0.72 xx 10^(-3)s^(-1)`
`2.88 xx 10^(-3)s^(-1)`

SOLUTION :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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