Why does an ideal gas cannot be cooled?

Answer 1

The definition of an ideal gas includes that they have no intermolecular bonds. Of course this is an ideal gas and no gases are truly ideal, but if one was its particles couldn't be drawn together (by reducing temperature or increasing pressure) into a liquid state because no intermolecular bonds exist for that to happen.

There are no ideal gases in reality -- some gases behave more like ideal gases than others. Every single gas can be liquified with no exceptions. Ideal gases can be liquified, but they just wouldn't be considered ideal anymore... but since they weren't actually ideal in the first place, it's kind of a silly question.

It's kind of like saying why can't something blue be red. Well, it can be red if you color it red instead of blue, but then it's not blue anymore! Doesn't really make much sense in the end...

Answer 2

That is a bit of a trick question because it depends on the definition you use for the term "vapor."

One definition of "vapor" is that it is synonymous with "gas". By that definition, a vapor can very easily act as an ideal gas - just like pretty much any other gas.

A second definition of "vapor" is:

"diffused matter (as smoke or fog) suspended floating in the air and impairing its transparency"

In this case, the suspended droplets or particles will not act like an ideal gas mainly because they are not separate, individual gas molecules. Another way to look at it is that they do not behave as ideal gases because they are far too large to act like the point masses assumed by the ideal gas law. They are usually held aloft by air currents and in the absence of such currents will settle out or coalesce to form droplets that fall when they get large enough. "Vapors" of this sort also display macroscopic properties such as potentially absorbing gasses on their surfaces, agglomerating, nucleating, evaporating, displaying surface tension, acquiring charges from static electricity, etc. nNone of these macroscopic behaviors can be present for an ideal gas.

Answer 3

At very low temperatures, the intermolecular forces play a larger role in determining the properties of the gas. In ideal gases, hypothetical gases, particles have negligible volume and experience no intermolecular forces.

Answer 4

For an ideal gas two conditions are necessary, 1- its molecules should volume less and 2- there is no force of attraction among its molecules, both these conditions are impossible to full fill therefore an ideal gas does not exists.

Answer 5

Because the chicken hasent been flamed yet.

Answer 6

it annot be cooled because it cannot be cooled

Answer 7

Ideal gases can be condensed, but the ideal gas model may fail for gases at higher temperatures.