One gram of liquid water at 100°C is converted to steam at 100°C at standard atmospheric pressure (1.01 × 105 Pa). The volume changes from 1 cm3 to 1671 cm3. The latent heat of vaporisation of water is 2260 J/g. The change in internal energy of the system, during this process, is close to
1
1.03 kJ
2
3.12 kJ
3
2.09 kJ
4
40.5 kJ