Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsFirst Order ReactionsEasy2 minPYQ_2025

ChemistryEasysingle choice

Reaction $A (g) \to 2 B (g) + C (g)$ is a first order reaction. It was started with pure A

Which of the following option isincorrect?

Options:

Answer:

Solution:

$A (g) ⟶ 2 B (g) + C (g)$
$t = 0 t \to \infty P_{0} 0 2 P_{0} P_{0}$
$P_{\infty} = 3 P_{0} P_{0} = 240 = 80 mm of Hg$
$Kt = ln (\frac{P _{\infty} - P _{0}}{P _{\infty} - Pt})$
$K \times 10 = ln (\frac{240 - 80}{240 - 160})$
$K = \frac{ℓ n 2}{10} = 0.0693 min^{- 1}$
Option (3) is incorrect

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

⏱ 2mℹ️ Source: PYQ_2025

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