Internal energy is equal to the heat absorbed in case of a/an __________ process.

Question: Liquefaction of gases can not be done by
[A].

exchange of heat with colder stream.

[B].

adiabatic expansion through a throttle valve (Joule-Thomson expansion).

[C].

merely compressing it beyond critical pressure.

[D].

adiabatic expansion against a piston or in a turbine.

Answer: Option C

Explanation:

No answer description available for this question.