Do all types of oils evaporate?

Answer 1

Oil does not evaporate noticeably. The previous answer, stating that all liquids contain water, was posted by a bigot; water is not oil soluble. All liquids evaporate to an extent- "warmer" particles move to the surface of a liquid and disperse into the air. Lets look at why. Remember that thermal energy is actually the average kinetic energy (energy of motion) of a substance. The more the particles move, the hotter a substance gets. Imagine that you are standing in a line with many people on either side of you, holding hands. You are all linked together by you hands, just as particles in any solid or liquid are held together closely by intermolecular attractions. Now imagine that all of you start jumping up and down, quite vigorously (representing kinetic energy and therefore thermal energy). What do you think happens to the group? People find it harder and harder to keep their hands together. Now imagine that everyone starts jumping even more quickly and vigorously. Your grip on your partners' hands starts to loosen, and eventually, they let go. To relate this example back to particles in a substance, when heat is added to a substance, the particles begin to move until they overcome their intermolecular attractions and break free. In their free state, these molecules are able to diffuse into the air as a gas. So why doesn't oil do this? Oil is lipid; cooking oil is a phospholipid derived from plants. It contains, in solution, small amounts oil soluble substances like some vitamins, odor particles, organic pigments, and other flavored substances. Phospholipids are large molecules. They consist of a head and a tail. In oils (not solid fats), the tails are kinked by double bonds, so that the molecules cannot line up and form a solid. This also hinders evaporation. The large molecules tangle up and hook together so that, in addition to intermolecular attractions, oil molecules are mechanically held tightly together. Like a hair ball, no matter how much kinetic energy you add, there is no efficient way to untangle the particles.

By comparison, water does not have this problem because it is a small molecule.

In short, oils do not evaporate readily, because they are large molecules and are tangled together too tightly for easy separation while changing into the gaseous state.

Answer 2

Yes. Technically, all liquids have a vapor pressure., which means that the air above the liquid allows a certain amount of the liquid to turn into a gas.

If a liquid sits in the open air, it will evaporate until the vapor pressure is reached. This means that, given a long enough time and a big enough room, any liquid will eventually evaporate - including oil.

Depending on the type of oil, the vapor pressure of the oil is usually around 1 kPa which is 1/100th the pressure of the atmosphere.

Answer 3

Yes, all liquids can evaporate. Evaporation is just when a liquid molecule becomes a gas. It is simply a phase change in which all liquids can form. This is similar to all solids being able to melt and all gases being able to condense. It just takes more energy for some than others.

Answer 4

Yes, all types of oils can evaporate to some extent. The rate of evaporation depends on factors like the type of oil, temperature, surface area, and air flow. Some oils with higher boiling points may evaporate more slowly compared to others with lower boiling points.

Answer 5

Oil does evaporate but a lot more slowly than water

Answer 6

They should do because all our food would be wrapped in oil!

Answer 7

Yes because anything that can be a liquid be a gas and a solid so it can evaporate when it turns into a gas

Answer 8

More importantly: Will it blend? :D

Answer 9

Water and oil are not miscible.