When 2 litre of ideal gas expands isothermally into vacuum to a total volume of 6 litre, the change in internal energy is _____ J. (Nearest integer)

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For ideal gas U = f T and for isothermal process, ΔU = 0 , Also P ext = 0 , thus work done in vacuum is also zero. Internal energy is a fuction of temperature.

Chemistry - Thermodynamics - I Question with Solution | TestHub

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