Question: Liquefaction of gases can not be done by
[A].exchange of heat with colder stream.
adiabatic expansion through a throttle valve (Joule-Thomson expansion).
merely compressing it beyond critical pressure.
adiabatic expansion against a piston or in a turbine.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.