A closed system contains saturated liquid ammonia at 10°C. The mass of ammonia is 5 kg. The amount of heat that is required to convert all the saturated liquid to vapour at constant pressure is 16.2 MJ. If the entropy of saturated liquid is 0.88 kJ/kg-K, what is the entropy (kJ/kg-K) of saturated vapour process without heat transfer?
1
6.6
2
8.7
3
12.32
4
14.72