Chapter 4

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Elnaz Guivatchian 3L
Posts: 11
Joined: Wed Sep 21, 2016 2:55 pm

Chapter 4

Postby Elnaz Guivatchian 3L » Thu Mar 02, 2017 12:45 am

Hi, can someone please explain number 40 in chapter 4 to me
thank you

Amy Ko 3C
Posts: 24
Joined: Sat Jul 09, 2016 3:00 am

Re: Chapter 4

Postby Amy Ko 3C » Thu Mar 02, 2017 10:03 am

Hi!
The diagrams of #4.40 is explained on page 164 of Ch. 4.4 of Figure 4.7
Diagram 1 shows a fast reaction because ΔG‡ is small. Since ΔGr is negative, we know that the reaction is spontaneous (favorable) and exergonic. This is likely to occur at room temperature.
Diagram 2 shows a slow reaction since ΔG‡ is large. Because Gr is negative, we know that the reaction is spontaneous (favorable) and exergonic. However, this reaction is less likely to occur at room temperaturer since ΔG‡ is large.
Diagram 3 shows a fast reaction because ΔG‡ is small. Since ΔGr is positive, the reaction is unfavorable and endergonic. Because ΔGr is not a large positive number, the reaction may occur at room temperature.
Diagram 4 shows a slow reaction because ΔG‡ is large. Because ΔGr is positive, the reaction is unnfavorable and endergonic. SInce ΔG‡ is large and ΔGr is positive, this reaction is less likely to occur at room temperature. (no matter the magnitude of ΔGr)


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