Answer to Question #344390 in General Chemistry for ashie

Question

why is it that when you try to boil an egg in an open pot, and leave awhile, upon returning you've noticed the water decreases? what about the movement of water molecules? what if you decided to put a lid on the pot, what will be the movement of the water molecules?

Answer 1

At the large end of each egg is a small air space. When you hard cook an egg, this air heats up, expands, and escapes through pores in the shell—but not before the egg white sets. This leaves the egg with a flattened end.