# An interesting question about eggs

1. Dec 20, 2013

### Zondrina

So while i was cooking my eggs this morning for breakfast, some interesting questions dawned on me.

Are eggs a liquid or a solid and more interestingly, why do they become a solid when they are heated up?

If eggs are a liquid, why don't they change into a gas? If they are a solid why don't they change into a liquid?

2. Dec 20, 2013

### Enigman

An overview:

Molecular level (video):
http://highered.mcgraw-hill.com/sit...chapter2/animation__protein_denaturation.html

and wiki: Denaturation (like your boiling eggs)
http://en.wikipedia.org/wiki/Denatu...uration_occurs_at_levels_of_protein_structure

Last edited by a moderator: Sep 25, 2014
3. Dec 20, 2013

### Zondrina

Hmm so proteins form a helix due to hydrogen bonding among other things.

So when the proteins are denatured, they form a solid state by bonding with $H_2O$ molecules.

This is some really interesting stuff. I never knew eggs were so complicated (relatively). When I first thought about it I was like "oh no! a contradiction to the KMT", but now I see how it works.

Thank you for providing that very informative video :)

4. Dec 20, 2013

### Enigman

There are two types of secondary structure:
Î±-Helix and Î²-pleated sheet:

The different levels of structures are: