Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsSecond & nth Order ReactionsMedium2 minPYQ_2017

ChemistryMediumsingle choice

The half life period of a first order chemical reaction is $6.93$ minutes. The time required for the completion of $99%$ of the chemical reaction will be $(lo g 2 = 0.301)$

Options:

Answer:

Solution:

For first order reaction $k = \frac{0.693}{t _{1/2}} = \frac{0.693}{6.93} k = \frac{2.303}{t} lo g \frac{100}{100 - 99} \frac{0.693}{6.93} = \frac{2.303}{t} lo g \frac{100}{1} \frac{0.693}{6.93} = \frac{2.303 \times 2}{t} t = 46.06 min$

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

⏱ 2mℹ️ Source: PYQ_2017

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