If an ideal gas is isothermally expanded its internal energy will

An ideal gas is compressed isothermally . Does its internal energy increase ?

Statement-1 : When an ideal gas is freely expanded change in internal energy of gas is zero, where as when real gas is expanded freely it's internal energy decreases. Statement-2 : There is no intermolecular force of attraction in ideal gas.

Statement-1 : When an ideal gas is freely expanded change in internal energy of gas is zero, where as when real gas is expanded freely it's internal energy decreases. Statement-2 : There is no intermolecular force of attraction in ideal gas.

Can a ideal gas be expanded at constant internal energy.

Assertion: For an ideal gas in a cyclic process and in an isothermal process change in internal energy is zero. Reason: In both processes there is no change in temperature.

Assertion: For an ideal gas in a cyclic process and in an isothermal process change in internal energy is zero. Reason: In both processes there is no change in temperature.