The rate constant of the reaction 2 H 2 O 2 a q ⟶ 2 H 2 O l + O 2 g i s 3 × 10 – 3 m i n - 1 At what concentration of H 2 O 2 , the rate of the reaction will be 2 × 10 – 4 M s – 1 ?

- d H 2 O 2 d t = k H 2 O 2 1 ∴ 2 × 10 - 4 = 3 × 10 - 3 60 × H 2 O 2 o r H 2 O 2 = 4 M

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Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsRate of Reactions/Rate LawEasy2 minPYQ_2020

ChemistryEasysingle choice

The rate constant of the reaction

$2 H_{2} O_{2} (a q) ⟶ 2 H_{2} O (l) + O_{2} (g) i s 3 \times 10^{- 3} {m i n}^{- 1}$

At what concentration of $H_{2} O_{2},$ the rate of the reaction will be $2 \times 10^{- 4} M s^{- 1}$ ?

Options:

Answer:

Solution:

$- \frac{d [H_{2} O_{2}]}{d t} = k {[H_{2} O_{2}]}^{1}$
$∴ 2 \times 10^{- 4} = \frac{3 \times 10^{- 3}}{60} \times [H_{2} O_{2}]$
$o r [H_{2} O_{2}] = 4 M$

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

⏱ 2mℹ️ Source: PYQ_2020

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