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Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsRate of Reactions/Rate LawMedium2 minQB

ChemistryMediumsingle choice

Passage / Comprehension

The reaction between A and B is of first order with respect to A and of zero order with respect to B. The following data was obtained for four experiments

The numerical value of $(y + z)$ is

Options:

Answer:

Solution:

$r = K [A]^{1} [B]^{\circ} r = K [A]$

$K = \frac{r}{[ A ]} = \frac{2.5 \times 1 0 ^{- 2}}{0.15} = 16.67 \times 1 0^{- 2} M/min$

$y = r = K [A] = 16.67 \times 1 0^{- 2} (0.135) = 2.25 \times 1 0^{- 2}$

$3.75 \times 1 0^{- 3} = 16.67 \times 1 0^{- 2} (z)$

$z = \frac{3.75 \times 1 0 ^{- 3}}{16.67 \times 1 0 ^{- 2}} = 0.225 \times 1 0^{- 1}$

$y + z = 2.25 \times 1 0^{- 2} + 0.225 \times 1 0^{- 1} = 0.045$

Stream:JEESubject:ChemistryTopic:Chemical KineticsSubtopic:Rate of Reactions/Rate Law

⏱ 2mℹ️ Source: QB

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