Determine the specific volume, internal energy and enthalpy of compressed liquid at 120 °C and 15MPa.

Water, assumed to be a perfect liquid, has a density of 1000 kg/m³ and a specific heat of 4184 J/kgK. The water undergoes an adiabatic, frictionless process in which its pressure is raised from 100 kPa to 1000 kPa. Find the following: (a) the change of specific internal energy (J/kg) (b) the change in temperature (K) (c) the change of specific enthalpy (J/kg) (d) the temperature change (K) required in a non-adiabatic but isobaric process to change the enthalpy the same amount as the change in part c.

The air in an automobile tire with a volume of 1.23 ft3 is at 72°F and 0.5 bar. Determine the amount of air that must be added to raise the pressure to the recommended value of 1 bar Assume the atmospheric to be 14.7 psia and the temperature and the volume to remain constant.

A 100L tank initially contains water at 100kPa and a quality of 1%. Heat is transferred to the water, raising the temperature and pressure. At a pressure of 3 MPa, a safety valve opens and saturated vapor at 3 MPa flows out. The process continues, maintaining 3 MPa inside until the quality in the tank is 90% and then stops. Determine the total mass of water that flowed out and the total heat transfer.