A first order reaction has a half - life period of 69 .3 sec at `0.10 "Mol litre "^(-1)` reactant concentration then the rate constant will be

Question

A first order reaction has a half - life period of 69 .3 sec at `0.10 "Mol litre "^(-1)` reactant concentration then the rate constant will be

A first order reaction has a half - life period of 69 .3 sec at `0.10 "Mol litre "^(-1)` reactant concentration then the rate constant will be
A. `10^(-4) sec ^(-1)`
B. `10^(-3) sec^(-1)`
C. `10^(-1) sec^(-1)`
D. `6.93xx10^(-1)sec^(-1)`

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
Rate `=kxx ["concentration "]`
`(0.693)/(69.3)xx0.1=10^(-3)sec^(-1)`

7 views Answered 2023-02-05 15:29