Question

For an isothermal expansion of an ideal gas, $\Delta U$ is zero.If true enter 1 else o

• A. 1

Answer 1

The correct option is A 1
During isothermal expansion of ideal gas, the temperature is constant. Hence, the internal energy of system is constant $\Delta U=0$ The heat absorbed is entirely used for doing work on surroundings or the work done on the system by surroundings results in the release of heat by the system.