1 kg of water at 100°C is converted into steam at 100°C by boiling at atmospheric pressure. The volume of water changes from 1.00 × 10-3 m3 as a liquid to 1.671 m3 as steam. The change in internal energy of the system during the process will be
(Given latent heat of vaporisaiton = 2257 kJ/kg. Atmospheric pressure = 1 × 105 Pa)
(1) +2090 kJ
(2) -2090 kJ
(3) -2426 kJ
(4) +2476 kJ
