ORGLIST:Activation energy

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From: Hoyer (hoyer$##$webspeed.dk)
Date: Mon Sep 15 2003 - 16:24:40 EDT


I am reading a book on microwave synthesis, where I saw the activation
energy for a 'middle of the range' organic reaction as 50 kcal/mol.
Is this a reasonable value? Or is 50 kJ/mol a more sensible number to work
with?

Another way to put it: What is the rule of thumb about how much faster a
reaction goes when you raise the temperature ten degrees (Or is it 20?).

I am trying to understand if there is any sound basis for talking about an
instantaneous temperature as being higher than the bulk temperature during a
microwave synthesis. It all looks a bit phoney to me..

yours,

Thomas Høyer

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