3.1 Calculate the difference in molar entropy (a) between liquid water and ice at -5°C, (b) between liquid water and its vapour at 95°C and 1.00 atm. The differences in heat capacities on melting and...

Extracted text: 3.1 Calculate the difference in molar entropy (a) between liquid water and ice at -5°C, (b) between liquid water and its vapour at 95°C and 1.00 atm. The differences in heat capacities on melting and on vaporization are 37.3 J K-l mol-' and -41.9 J K-l mol-', respectively. Distinguish between the entropy changes of the sample, the surroundings, and the total system, and discuss the spontaneity of the transitions at the two temperatures.