Why do tertiary halogenoalkanes react faster than primary, secondary halogenoalkanes?

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Anonymous1502
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Question above^
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justme2001
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Requires a lower activation energy
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Anonymous1502
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(Original post by justme2001)
Requires a lower activation energy
Why is that?
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Pigster
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(Original post by Anonymous1502)
Question above^
Which exam board are you?
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justme2001
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Forces between the bonds are weaker because of an increased dipole
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Anonymous1502
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(Original post by Pigster)
Which exam board are you?
edexcel
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Meth.h
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Don't they react slower?

GOT BLESS MY CHEMISTRY!
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Pigster
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(Original post by Anonymous1502)
edexcel
Primary do SN2 (which is slow), tertiary do SN1 (which is fast), secondaries do a bit of both.
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Anonymous1502
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(Original post by Pigster)
Primary do SN2 (which is slow), tertiary do SN1 (which is fast), secondaries do a bit of both.
What is SN1 and SN2?
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Pigster
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(Original post by Anonymous1502)
What is SN1 and SN2?
If you read your spec, it says:
6D Halogenoalkanes
34. know the trend in reactivity of primary, secondary and tertiary halogenoalkanes

"know" does not mean "understand".

Later it says:
16 Kinetics II
11. understand that knowledge of the rate equations for the hydrolysis of halogenoalkanes can be used to provide evidence for SN1 or SN2 mechanisms for tertiary and primary halogenoalkane hydrolysis

The term SN1 only comes up in one other place:
17A Chirality
5. be able to use data on optical activity of reactants and products as evidence for SN1 and SN2 mechanisms

I don't know what to make of that.
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Anonymous1502
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(Original post by Pigster)
If you read your spec, it says:
6D Halogenoalkanes
34. know the trend in reactivity of primary, secondary and tertiary halogenoalkanes

"know" does not mean "understand".

Later it says:
16 Kinetics II
11. understand that knowledge of the rate equations for the hydrolysis of halogenoalkanes can be used to provide evidence for SN1 or SN2 mechanisms for tertiary and primary halogenoalkane hydrolysis

The term SN1 only comes up in one other place:
17A Chirality
5. be able to use data on optical activity of reactants and products as evidence for SN1 and SN2 mechanisms

I don't know what to make of that.
Thank you PRSOM

understand that knowledge of the rate equations for the hydrolysis of halogenoalkanes can be used to provide evidence for SN1 or SN2 mechanisms for tertiary and primary halogenoalkane hydrolysis
Can you please explain the red part? It would be much appreciated
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Pigster
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(Original post by Anonymous1502)
Thank you PRSOM

understand that knowledge of the rate equations for the hydrolysis of halogenoalkanes can be used to provide evidence for SN1 or SN2 mechanisms for tertiary and primary halogenoalkane hydrolysis
Can you please explain the red part? It would be much appreciated
Are you Y12?
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Anonymous1502
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(Original post by Pigster)
Are you Y12?
I am an adult learner currently covering AS chemistry on my own.
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Pigster
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(Original post by Anonymous1502)
I am an adult learner currently covering AS chemistry on my own.
It isn't an AS topic.

My advice as an adult learner myself is to learn to research. It is a whole lot easier than in my youth, what with google.

I searched for "sn1 vs sn2 halogenoalkane hydrolysis" and this popped up: https://study.com/academy/lesson/nuc...loalkanes.html
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