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Air (21 percent O2, 79 percent N2) is heated to 5400 R at a pressure of 1 atm. Determine the equilibrium composition, assuming that only O2, N2
Adv Refrigerant-22 is flowing in a pipeline at 40 F, 80 lbf/in 2, with a velocity of 650 ft/s, at a steady flow rate of 0.2 lbm/s, tt is desired to decelerate
Air at 15°C is compressed steadily and isothermally from 100 kPa to 700 kPa at a rate of 0.12 kg/s. The minimum power input to the compressor is.
Air at 150 kPa, 290 K expands to the atmosphere at 100 kPa through a convergent nozzle with exit area of 0.01 m2. Assume an ideal nozzle.
Air at 15 psia, 60°F, and 50 percent relative humidity flows in an 8-in.-diameter duct at a velocity of 50 ft/s. Determine
Air at 13 psia and 20°F enters an adiabatic diffuser steadily with a velocity of 600 ft/s and leaves with a low velocity at a pressure of 14.5 psia
Air at 1 atm, 60 F is compressed to 4 atm, after which it is expanded through a nozzle back to the atmosphere.
A water-cooling tower for a power plant cools 45°C liquid water by evaporation. The tower receives air at 19.5°C, ? = 30%, 100 kPa that is blown
A water pipe is connected to a double-U manometer as shown in Fig. E at a location where the local atmospheric pressure is 14.2 psia
A well-insulated rigid tank contains 2 kg of a saturated liquid-vapor mixture of water at 100 kPa. Initially, three-quarters of the mass is in the liquid phase
Air at 200 kPa, 30°C is contained in a cylinder/piston arrangement with initial volume 0.1 m3. The inside pressure balances ambient pressure of 100 kPa
Air at 20 m/s, 260 K, 75 kPa with 5 kg/s flows into a jet engine and it flows out at 500 m/s, 800 K, 75 kPa
A water-filled reactor of 1 m3 is at 20 MPa, 360°C and located inside an insulated containment room of 100 m3 that contains air at 100 kPa and 25°C.
A water pump that consumes 2 kW of electric power when operating is claimed to take in water from a lake and pump it to a pool
A water pump delivers 3 hp of shaft power when operating. If the pressure differential between the outlet and the inlet of the pump is measured to be 1.2 psi
A water jet that leaves a nozzle at 60 m/s at a flow rate of 120 kg/s is to be used to generate power by striking the buckets located on the perimeter
A wind turbine is rotating at 15 rpm under steady winds flowing through the turbine at a rate of 42,000 kg/s.
A well-sealed room contains 60 kg of air at 200 kPa and 25°C. Now solar energy enters the room at an average rate of 0.8 kJ/s while a 120-W
A well-insulated rigid tank contains 5 kg of a saturated liquid-vapor mixture of water at l00 kPa. Initially, three-quarters of the mass is in the liquid phase.
Simplified analysis of the processes occurring in a spark-ignition internal combustion engine is described by the cold air-standard Otto cycle.
A water-filled reactor with volume of 50 ft3 is at 2000 lbf/in 2, 560 F and placed inside a containment room. The room is well insulated and initially evacuated
Determine the exit pressure, temperature, and area, and the throat area.
A piston/cylinder contains 0.001 m3 airs at 300 K, 150 kPa. The air is now compressed in a process in which P V1.25 = C to a final pressure of 600 kPa.
A window air conditioner that consumes 1 kW of electricity when running and has a coefficient of performance of 4 is placed in the middle of a room
A windmill with rotor diameter of 30 m takes 40% of the kinetic energy out as shaft work on a day with 20oC and wind speed of 30 km/h. What power is produced?