k 1 = 1.26 × 1 0 − 4 s − 1 , k 2 = 3.8 × 1 0 − 5 s − 1 Find the % distribution of C in the products.

[ B ] t + [ C ] t [ C ] = K 1 + K 2 K 2 × 100

Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsFirst Order ReactionsMedium2 minQB

ChemistryMediumnumerical

Passage / Comprehension

Completing first order reactions.

Frequently a species can react in different wags to give a variety of products. For e.g. toluene can be nitrated at ortho, meta, para positions. We shall consider the simplest case, the competing irreversible 1^st order reactions.

$k_{1} = 1.26 \times 1 0^{- 4} s^{- 1}$ , $k_{2} = 3.8 \times 1 0^{- 5} s^{- 1}$

Find the % distribution of C in the products.

Answer:

23.17

Solution:

$\frac{[ C ]}{[ B ] _{t} + [ C ] _{t}} = \frac{K _{2}}{K _{1} + K _{2}} \times 100$

Stream:JEESubject:ChemistryTopic:Chemical KineticsSubtopic:First Order Reactions

⏱ 2mℹ️ Source: QB

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