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A rigid tank contains an ideal gas at 300 kPa and 600 K. Now half of the gas is withdrawn from the tank and the gas is found at 100 kPa at the end of the proces
A rigid tank initially contains 1.4-kg saturated liquid water at 200°C. At this state, 25 percent of the volume is occupied by water and the rest by air
A six-cylinder, four-stroke, 4.5-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 17.
A simple ideal Rankine cycle operates between the pressure limits of 10 kPa and 3 MPa, with a turbine inlet temperature of 600°C.
A rigid, insulated vessel contains superheated vapor steam at 450 lbf/in 2, 700 F. A valve on the vessel is opened, allowing steam to escape
A rigid vessel initially contains 2 kmol of carbon and 2 kmol of oxygen at 25?C, 200 kPa. Combustion occurs, and the resulting products consist of 1 kmol
A rigid tank with a volume of 2.5 m3 contains 15 kg of saturated liquid-vapor mixture of water at 75°C. Now the water is slowly heated
A rigid tank initially contains 100 L of saturated-liquid R-12 and 100 L of saturated-vapor R-12
A rigid tank containing 0.4 m3 of air at 400 kPa and 30°C is connected by a valve to a piston-cylinder device with zero clearance
A rigid tank contains 1 kmol of Ar gas at 220 K and 5 MPa. A valve is now opened and 3 kmol of N2 gas is allowed to enter the tank at 190 K and 8 MPa.
A room contains air at 20°C and 98 kPa at a relative humidity of 85 percent. Determine
A room contains 60 kg of air at 100 kPa and 15°C. The room has a 250-W refrigerator (the refrigerator consumes 250 W of electricity when running)
A river flowing steadily at a rate of 240 m3/s is considered for hydroelectric power generation. It is determined that a dam can be built to collect water
A rigid insulated container has two rooms separated by a membrane. Room A contains 1 kg air at 200oC and room B has 1.5 kg air at 20oC, both rooms at 100 kPa
A rigid container, 10 m3 in volume, contains moist air at 45°C, 100 kPa, 40%. The container is now cooled to 5°C
The partition ruptures, and the nitrogen comes to a uniform state at 100°C. Assuming the surroundings are at 25°C find the actual heat transfer
Disregard other possible species and determine the final pressure, the equilibrium composition and the heat transfer for the process.
The partition wall is removed and the water comes to a uniform state, which after a while due to heat transfer has a temperature of 200°C.
A rigid tank contains 1.2 m3 of argon at -100°C and 1 MPa. Heat is now transferred to argon until the temperature in the tank rises to 0°C.
A rigid tank contains 0.5 kmol of Ar and 2 kmol of N2 at 250 kPa and 280 K. The mixture is now heated to 400 K. Determine the volume of the tank
A rigid insulated tank is separated into two rooms by a stiff plate. Room A of 0.5 m3 contains air at 250 kPa, 300 K and room B of 1 m3 has air at 150 kPa
A rigid tank contains 20 lbm of air at 20 psia and 70°F. More air is added to the tank until the pressure and temperature rise to 35 psia and 90°F, respectively
A rigid tank contains 20 lbm of air at 50 psia and 80°F. The air is now heated until its pressure doubles. Determine
A rigid tank contains 2 kmol of N2 and 6 kmol of CH4 gases at 200 K and 12 MPa. Estimate the volume of the tank
A rigid tank contains 1.5 kg of water at 120°C and 500 kPa. Now 22 kJ of shaft work is done on the system and the final temperature in the tank is 95°C