When a gas expands adiabatically,
A) it does no work.
B) the temperature of the gas remains constant.
C) the internal (thermal) energy of the gas increases.
D) work is done on the gas.
E) the internal (thermal) energy of the gas decreases.

Question

Quizplus · Accepted Answer

In an adiabatic expansion, a gas does work on its surroundings, which results in a decrease in its internal (thermal) energy since no heat is exchanged with the surroundings.

When a Gas Expands Adiabatically