Question

Methane gas at 550 K and 5 bar undergoes a reversible adiabatic expansion to 1 bar. Assuming ideal gas state methane at these conditions, find its final temperature.

Answer 1

Answer:

Using Gay Lussac's Law,

P1/T1=P2/T2

5/550=1/T2

5T2=550

∴Final Temperature T2=550/5

=110 K