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Get Full Access to Atkins' Physical Chemistry - 11 Edition - Chapter 11c - Problem D11c.2
Get Full Access to Atkins' Physical Chemistry - 11 Edition - Chapter 11c - Problem D11c.2

× ISBN: 9780198769866 2042

## Solution for problem D11C.2 Chapter 11C

Atkins' Physical Chemistry | 11th Edition

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Problem D11C.2

Describe the effect of vibrational excitation on the rotational constant of a diatomic molecule.

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Chapter 15: Chemical Kinetics A. Chemical Kinetics a) Thermodynamics i) Does a reaction take place b) Kinetics i) How fast does a reaction proceed c) Reaction Rate: change in concentration of reactant or product with time (M/s) A B rate= ∆[A] ∆t Δ[A]= change in concentration of A over time period Δt ∆[B ] rate= Δ[B]= change in concentration of B over time ∆t period Δt Because [A] decreases with time, Δ[A] is negative Br (aq)+HCOOH (aq)−→2Br− aq +2H+ (aq)+CO (g) d) 2 2 Br 2 initial ¿ Br2¿ final Average rate= ¿ −∆ B[ 2] =−¿ ∆t i) Instanteaous rate= rate for specific instance in time rate=∝ [r 2] rate=k[Br 2 k= rate =rateconstant [Br 2 −3 −1 ¿3.50∗10 s ii) 2H 2 2(aq)−→2H O 2 (l+O 2(g) PV=nRT n P= RT=[O ]2 RT V [ 2 1 P Measure

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