In a system composed of an ideal gas contained in a cylinder fitted with a piston,a reversible adiabatic expansion causes the temperature of the gas to drop because
A)heat is given up by the system when the piston moves.
B)the pressure of the gas remains constant.
C)work is done on the system as the gas expands.
D)work done by the system is done entirely at the expense of its internal energy.
E)heat is absorbed by the piston when it does work.

Question

Quizplus · Accepted Answer

In a reversible adiabatic process, no heat is exchanged with the surroundings. The work done by the gas during expansion comes from its internal energy, leading to a decrease in temperature.

In a System Composed of an Ideal Gas Contained in a Cylinder