Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsExperimental determination of order of reactionMedium2 minPYQ_2021

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A reaction is first order with respective to A and second order with respective to $B$ . What is the effect on reaction rate if concentration of B is increased 3 times?

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Answer:

Solution:

Rate law of reaction, $r = k [A]^{'} [B]^{2}$ If concentration of $B$ is increased 3 times, $B \to 3 B r_{New} = k [A] [3 B]^{2} \frac{r _{New}}{r} = \frac{k [ A ] [ 3 B ] ^{2}}{k [ A ] [ B ] ^{2}} \frac{r _{New}}{r} = 3^{2} r_{New} = 9 r$ Rate increase 9 times.

Stream:MHT_CETSubject:ChemistryTopic:Chemical KineticsSubtopic:Experimental determination of order of reaction

⏱ 2mℹ️ Source: PYQ_2021

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