Calculate the entropy change for each of the following:
(a) 10g of steam at l00°C and a pressure of one atmosphere condensing into water at the same temperature and pressure. (The latent heat of vaporization of water is 22571 Jg^-1).
(b) 10g of water at l00°C and a pressure of one atmosphere cooling to 0°C at the same pressure. (The average speci?c heat of water between 0°C and 100°C is 4.19 Jg^-1).
(c) 10g of water at 0°C and a pressure of one atmosphere freezing into ice at the same pressure and temperature. (The latent heat of fusion of ioe is 3331 Jg^-1).