2007-12-12 02:37:32 · 3 answers · asked by Aks 1 in Science & Mathematics ➔ Other - Science
The molecules of a liquid are held together by a collection of forces, see reference. Physical chemistry is the field which would let you calculate how strong those forces are for a particular molecule, and therefore how much kinetic energy each molecule must have to break those bonds and move more freely as a gas. For bromine, at 1 atmosphere pressure, that happens to be 332K, well above room temperature.
2007-12-12 04:39:17 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
The state of a chemical relies upon the van der waal forces between molecules. Heating bromine liduid breaks these van der waal forces so molecules can move freely i.e. become gas.
So without enough energy to break these van der waal forces you have a liquid or solid.
2007-12-12 12:33:42 · answer #2 · answered by Dean360 1 · 0⤊ 0⤋
Bromine has a relatively low vapor pressure, but it is still greater than that of water. Water will partially vaporize at room temperature (evaporation), so Bromine will vaporize as well.
If you have a large volume of bromine liquid, it will begin to vaporize at room temperature and pressure.
So it is due to its vapor pressure.
2007-12-12 10:47:24 · answer #3 · answered by Brent 3 · 0⤊ 1⤋