Determine the total mass of nitrogen (N2), in kg. required to inflate all four tires of a vehicle, each to a gage pressure of 170 kPa at temperature of -10°C. The volume of each tire is 0.6 m, and the atmospheric pressure is 1 atm.

A vacuum gage connected to a chamber reads 20 kPa at a location where the atmospheric pressure is 97 kPa. Determine the absolute pressure in the chamber.     The absolute pressure in the chamber is _______ kPa.

7. In a sturdy closed container with a volume of 0.3m ^ 3, there is a wet steam of 300 kPa in pressure. When the total mass is 4 kg, calculate the mass and volume of liquid and water vapor, respectively. What is the pressure in the vessel when heated to 300C? P-v diagram or T-v diagram should be shown and the corresponding status and process should be indicated.

If 10 kg of H2O at 90°C has an internal energy of 7.5 MJ.   What is the following properties of "Quality, x"