1. While the pressure remains constant at 689.5 kPaa, the volume of air changes from 0.567 m³ to 0.283 m?. Find the change of internal energy.

Consider the closed, rigid container of water as shown. The pressure is 700 kPa, the mass of the saturated liquid is 1.78 kg, and the mass of the saturated vapor is 0.22 kg. Heat is added to the water until the pressure increases to 8 MPа. m, V Sat. Vapor Find the final temperature, m, V, Sat. Liquid enthalpy, and internal energy of the water

the specific heat capacity of the system during a certain process is given by Cn(0.4+0.004T) kJ/kg deg. celcius. if the mass of the gas is 6kg and its temperature changes from 25 def. celcius to 125 def. celcius find the mean specific heat of the gas

A 48 HP motor is used to drive an air compressor.  The compressor efficiency is 80 %  Determine the compressor work in kW Answer in whole number

One kilogram of air is compressed from a volume of 1.0 m and a pressure of 100 kPa to a volume of 0.147 m and a pressure of 1000 kPa. Assuming that the compression follows the law pu" the work done during the compression process. = constant, find

Q4/Find the work done by the steam if 300-L cylinder contain 500 g of steam at 400Kpa now heat transferred to the steam until the temperature is 300 C at constant pressure.

An automobile tire contains a certain volume of air at 205 kPa g and 20 0 C. The barometricpressure is 100 kPa a . If due to running conditions the temperature of the air in the tire risesto 70 0 C, what will be the gage pressure? Assume that the air is an ideal gas and that thetire does not stretch.

2. 0.3 kg of carbon dioxide is contained in the cylinder with the piston. Initial conditions are 200 kPa, 30 °C. It was compressed to 600 kPa by an isothermal process (a process where the temperature is constant). Find out what has been done during this process.

A. Find the specific volume and quality of water at 50kPa and 190 degree Celsius. B. Find the specific volume and quality of water at 50kPa and 30 degree Celsius.

Water in an enclosed volume of 1 m3 has heat added until it reaches a temperature of 150 Celsius. If there is 4 kg of water in the container, find the final pressure in kPa of the water, its final mass of the water vapor in kg and the final volume of the water vapor.