The entropy change associated with the conversion of 1 kg of ice at 273 K to water vapours at 383 K is :
(Specific heat of water liquid and water vapour are `4.2kjK^(-1)kg^(-1)` and `2.0kjK^(-1)kg^(-1)` , heat of liquid fusion and vapourisation of water are `334kj kg^(-1)` and `2491kj kg^(-1)`, respectively ). (`log 273=2.436,log373=2.572, log 383=2.583`)