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Physical Chemistry 3: — Chemical Kinetics — - Christian-Albrechts ...

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7.3 Thermodynamic interpretation of transition state theory 169<br />

I<br />

Activation volume:<br />

∆ ‡ (7.135)<br />

I Example 7.3: Comparison of the pressure dependencies of the rate constants for 1<br />

and 2 reactions:<br />

(CH 3<br />

) 3<br />

CCl + H 2 O → (CH 3<br />

) 3<br />

C + +Cl − +H 2 O → ∆ ‡ 0<br />

y ↑ y ↓ 1<br />

HO − +CH 3 I<br />

⎡<br />

⎤<br />

|<br />

→ ⎣ HO ···C ···I ⎦<br />

ÁÂ<br />

−<br />

→ ∆ ‡ 0<br />

y ↑ y ↑ 2<br />

¤

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