This question requires the use of the extracts from the tables of thermodynamic properties supplied. Dry saturated steam at a temperature of 25°C is cooled isentropically such that its temperature falls to 15°C. What is the dryness fraction after the cooling process?

2) Two glass bulbs, one on the left with a volume of 2 liters and the other on the right with avolume of 6 liters, are connected to one another by a thin tube that is initially closed by astopcock. The bulb on the left has 0.1 moles of ideal gas, and the bulb on the right isevacuated. The system is in thermal equilibrium with the surroundings at 300K. When thestopcock is opened, the gas flows out to fill both bulbs. Calculate A for this process. If wewere to insert a propeller to extract work as the gas flows from left to right, what is themaximum amount of work that we could possibly extract?

Ice at -10°C and water vapor at 130°C are brought together at atmospheric pressure in a perfectly insulated container whose heat capacity can be neglected. After thermal equilibrium is reached, the liquid phase at 50°C is present. Ignoring the equilibrium vapor pressure at 50°C, find the ratio of the mass of the steam to that of the ice (L, = 3.35×10°J/kg L, = 2.26x10° J / kg C = 2000J / kg - °C cm = 2020J / kg -°C)

(a) An incoming stream of 1500kmol/min consists of saturated water with 65% liquid water and 35% steam at 40 bars. This steam is heated at constant pressure to 600°C. Using the steam tables, what is the heat transfer requirement for this step in kW? (Note: Steam tables in the bottom page)(b) This steam is then compressed isothermally to steam at 200 bars in a second step. What is the heat transfer requirement for this step in kW?