Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsSecond & nth Order ReactionsMedium2 minPYQ_2023

ChemistryMediumsingle choice

What is the half life of a first order reaction if rate constant is $4.2 \times 1 0^{- 2}$ per day?

Answer:

Solution:

For a first order reaction, $t_{1/2} = \frac{0.693}{k} = \frac{0.693}{4.2 \times 1 0 ^{- 2}} = 16.5$ days

Stream:MHT_CETSubject:ChemistryTopic:Chemical KineticsSubtopic:Second & nth Order Reactions

⏱ 2mℹ️ Source: PYQ_2023

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