1. The problem statement, all variables and given/known data 3. The attempt at a solution I thought you could use steam tables to find the initial and final temperatures in order to solve part (b). The solution assumes rho = 1000kg/m^3 (or in other words all liquid). So in the steam tables: This tells me that at 100kPa the temperature is around 100C and at 300kPa the temperature is 134C. Thus the difference is 34C and not 0.028C (which is the answer). Why does this method not work?