Calculate the half life of a first order reaction from their rate constants given below `:` `a. 200s^(-1)`,`b. 2 mi n^(-1)`,`c.4years^(-1)`
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(i) Half life , `t_((1)/(2)) = (0.693)/(k)` `= (0.693)/(200 s^(-1))` =`3.47 xx 10^(-3)s` (approximately) (ii) Half life , `t_((1)/(2)) = (0.693)/(k)` = `(0.693)/(4 "years"^(-1))` = `0.173` years (approximately)
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