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The rate constant and half life for reactions are related as ____(a) k α t0.5(b) k α \(\frac{1}{(t_{0.5})} \)(c) k α e^(-t0.5)(d) k is independent of t0.5The question was posed to me by my school principal while I was bunking the class.My question is taken from Reaction Kinetics Elements topic in division Elements of Reaction Kinetics of Chemical Reaction Engineering

Answer» CORRECT answer is (b) k α \(\frac{1}{(t_{0.5})} \)

To ELABORATE: For 1^st order REACTION, t0.5 = \(\frac{0.6931}{k}.\) For all REACTIONS of order other than 1, t0.5 = \(\frac{(0.5^{(1-n)}-1)×C_{A0}^{1-n}}{k(1-n)}. \)


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