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Two mole of an ideal gas is expanded isothermally and reversibly from 1 litre ot 10 litre at 300 K. The enthalpy change (in kJ) for the process is [IIT JEE (Screening) 2004]
(1) 11.4 kJ
(2) –11.4 kJ
(3) 0 kJ
(4) 4.8 kJ