g There is no change in the internal energy of an ideal gas undergoing an isothermal process since the internal energy depends only on the temperature. Is it therefore correct to say that an isothermal process is the same as an adiabatic process for an ideal gas

No, the isothermal process is the not same as an adiabatic process for an ideal gas.

Explanation:

There is no change in the internal energy of an ideal gas undergoing an isothermal process since the internal energy depends only on the temperature.

But in the adiabatic process, there is no heat transfer, but work transfer can take place which causes the change in the internal energy due to which there is a change in temperature of an ideal gas.

Hence, the isothermal process is the not same as an adiabatic process for an ideal gas.

if they have a finite resultant