Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsMiscellaneous/MixedMedium2 minQB

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Passage / Comprehension

Initially only A(g) is introduced in a closed and rigid container at constant temperature and it reacts according to first order kinetics as :

2A(g) —→ 2B(g) + C(g)

Total pressure of gas mixture in container at different times is recorded as :

What is the total pressure of gas mixture in the container at $t = 20 min$ ?

Answer:

Solution:

$t = \frac{1}{K} ℓ n (\frac{1}{1 - P}) \Rightarrow 20 = \frac{1}{0.09} ℓ n (\frac{1}{1 - P})$

$\Rightarrow P = 1 - e^{1.8} \Rightarrow 1 - 0.16 \Rightarrow 0.84$

$\Rightarrow P_{t} = 1 + \frac{P}{2} \Rightarrow 1.42 atm$ .

Stream:JEESubject:ChemistryTopic:Chemical KineticsSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: QB

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