Re: mech eng student with chem question



The bonds in aromatics tend to be a little harder to break, because they are resonating throughout the molecule and tend to protect themselves.

Typically, double bonds are a little easier to break than single bonds (I think). We have a few problems with the double bonds in natural oils reacting well before the rest of the molecule reacts. They are quite happy to give up their high energy bond in favor of lower energy bonds.

As for why one bond would break rather than another, there can be several reasons, most of which comes down to energy.

Michael



Can you explain what you mean by resonating? I know my mechanical knowledge is not helping here, as in solid dynamics, if an object vibrates at its resonant frequency, it tends to go into catastrophic failure- basically can 'shake itself apart'. I assume this resonance is not the same sort of thing, but what does it mean on an atomic or molecular level?

thanks,
Karinne
.

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