What is correct for an ideal gas undergoing reversible adiabatic expansion regarding temperature –?
(1) Remain same
(2) Increase
(3) Decreases
(4) May increase or decrease
Please give the reason also.
(1) Remain same
(2) Increase
(3) Decreases
(4) May increase or decrease
Please give the reason also.
1 Answer
Jan 2, 2018
Decreases
Explanation:
Given that the gas undergoes a reversible adiabatic expansion, we know that the energy input into the system by heating is zero, i.e.
We can describe an adiabatic process using the following equation:
#TV^(gamma-1)="constant"#
where
Because the gas is expanding, we know that