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प्रश्न
The rate constant for a first order reaction is 1.54 × 10−3 s−1. Calculate its half life time.
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उत्तर
We know that `"t"_(1/2) = 0.693/"k"`
`"t"_(1/2) = 0.693/(1.54 xx 10^-3 "s"^-1)` = 450 s
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संबंधित प्रश्न
The rate constant for a first order reaction is 100 s–1. The time required for completion of 50% of reaction is _______.
(A) 0.0693 milliseconds
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(C) 6.93 milliseconds
(D) 69.3 milliseconds
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\[\ce{2N2O5 -> 4NO2 + O2}\]
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| 102 × [N2O5]/mol L−1 | 1.63 | 1.36 | 1.14 | 0.93 | 0.78 | 0.64 | 0.53 | 0.43 | 0.35 |
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(A) t–1
(B) mol dm–3 t–1
(C) mol–1 dm3 t–1
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