1.

In a first order reaction, the concentration of the . reactant is decreased from 1.0M to 0.25M in 20 minute. The rate constant of the reaction would

Answer»

`10 MI n^(-1)`
`6.93 mi n^(-1)`
`0.693mi n^(-1)`
`0.0693 mi n^(-1)`

SOLUTION :`t= 2.303/klog. (a)/((a-x))`
`:. K=2.303/20log. (1)/0.25`
`- 0.06931 MIN^(-1)`


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