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InterviewSolution
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The rate constant for a first order reaction is `7.5 xx 10^(-4) s^(-1)`. If initial concentration of reactant is `0.080 M`, what is the half life of reaction ?A. `990 s`B. `79.2s`C. `12375 s`D. `10.10 xx 10^(-4) s` |
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Answer» Correct Answer - A Given , `K = 7 xx 0^(-4)s^(-1),[A]_(0) = 0.08 M` Half life `(t_(1//2))` of a first order reaction is independent of initial concentration and is given as `t_(1//2) = (0.693)/(k) = (0.693)/(7xx 10^(-4)s) = 990 s` |
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