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The first order rate constant of a unimolecular gas phase reaction A-> products that follows lindlemann mechanism is 2.0s-1 at Pa=1 atm and 4.0 at Pa= 2 atm.the rate constant foe the activation step is?
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The first order rate constant of a unimolecular gas phase reaction A->...
Calculation of Activation Energy for Lindemann Mechanism
Given Data
- Unimolecular gas phase reaction A-> products
- Lindemann mechanism
- First order rate constant k1 = 2.0 s-1 at Pa = 1 atm
- First order rate constant k2 = 4.0 s-1 at Pa = 2 atm
Calculation of Activation Energy
According to the Lindemann mechanism, the rate constant k1 is given by:
k1 = (k1a * PA) / (k1a * PA + k1b)
where k1a and k1b are the rate constants for the activation and deactivation steps, respectively, and PA is the pressure of species A.
Similarly, the rate constant k2 is given by:
k2 = (k2a * PA) / (k2a * PA + k2b)
where k2a and k2b are the rate constants for the activation and deactivation steps, respectively, and PA is the pressure of species A.
Dividing the two equations, we get:
k2/k1 = (k2a * PA + k2b) / (k1a * PA + k1b)
Substituting the given values, we get:
4.0/2.0 = (k2a * 2 atm + k2b) / (k1a * 1 atm + k1b)
Simplifying, we get:
k2a + k2b = 2(k1a + k1b)
Since the overall reaction is unimolecular, the deactivation step is assumed to be negligible. Therefore, k1b is zero.
Substituting this value, we get:
k
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The first order rate constant of a unimolecular gas phase reaction A-> products that follows lindlemann mechanism is 2.0s-1 at Pa=1 atm and 4.0 at Pa= 2 atm.the rate constant foe the activation step is? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about The first order rate constant of a unimolecular gas phase reaction A-> products that follows lindlemann mechanism is 2.0s-1 at Pa=1 atm and 4.0 at Pa= 2 atm.the rate constant foe the activation step is? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The first order rate constant of a unimolecular gas phase reaction A-> products that follows lindlemann mechanism is 2.0s-1 at Pa=1 atm and 4.0 at Pa= 2 atm.the rate constant foe the activation step is?.
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