The half-life time of a first order reaction is `1.26×10^14` s, then rate consant of this reaction will be :
| A. |
`5.5×10^(–10) s^(–1)` |
| B. |
`5.5×10^(–14) s^(–1)` |
 |
| C. |
`6.6×10^(–14) s^(–1)` |
| D. |
None of these |
Given half-life time of a first order reaction = `1.26×10^14` s To find the rate constant of this reaction. Solution K = rate constant, `t_(1/2)` = half-life time
`t_(1/2)=(0.693)/(1.26xx10^14)`
`=5.5xx10^(-14)S^-1`