adiabatic expansion

[maltamarco]

Hi Guys

Could some one answer me this:

Is it possible to condense a gas only by adiabatic expansion ?????

Marco

[DTLarca]

Hi Guys

Could some one answer me this:

Is it possible to condense a gas only by adiabatic expansion ?????

Marco

Not the same gas that is expanding.

This is something like asking can I cool a gas by heating it? Or can I condense a gas by vaporising it?

You need to adiabatically expand something else that is in thermal contact with the gas you wish to condense.

[slingblade]

Hi Guys

Could some one answer me this:

Is it possible to condense a gas only by adiabatic expansion ?????

Marco

No. This is not possible.

[mad fridgie]

No. This is not possible.

Not quite true, but in standard refrigeration, is practically true.
Trans critical refrigeration does