Energy transfer by heat into the system

Assignment Help Mechanical Engineering

Reference no: EM13718025

A system consisting of 2 kg of water initially at 160 C, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 2700 kj. Determine the final pressure, in bar, and the work, in kj

Reference no: EM13718025

Questions Cloud

What is the total pressure at the front of the beam : A river (of water) is flowing at a velocity of 1.2 m/s at 25 C. If a large beam is placed in the river to support a bridge, what is the total pressure at the front of the beam (the side facing upstream) in kPa at a depth of 2 m when the atmospheric p..

Hot combustion gases flow into a nozzle at low velocity : Hot combustion gases flow into a nozzle at low velocity with an enthalpy of 1,000 kJ/kg at a mass flow rate of 1 kg/s. At the nozzle exit, the enthalpy is reduced by a factor of 2. What is the thrust experienced by the nozzle as a result of the exhau..

Determine the cop ot the cycle and the total cooling load : An ideal vapor-compression refrigeration cycle uses r-134a as the working fluid is used to cool a brine solution to -5 C. This solution is pumped to various buildings for the purpose of air conditioning. The refrigerant evaporates at -10 C with a tot..

Parting line in injection molding : The parting line in injection molding is which one of the following: (a) the lines formed where polymer melt meets after flowing around a core in the mold, (b) the narrow gate sections where the parts are separated from the runner, (c) where the clam..

Energy transfer by heat into the system : A system consisting of 2 kg of water initially at 160 C, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 2700 kj. Determine the final pressure, in bar, and the work, in ..

Final temperature and pressure of the fluid in the tank : A rigid tank contains 5 kg of saturated liquid-vapor mixture of H2O at 100 kPa and quality of 24.4%. A heat transfer process occurs until the H20 in the tank is a saturated vapor.

The specific exergy destruction : An air compressor compresses air from 1 bar and 300 K to 5 bar and 540 K. The velocity at the inlet is 70 m/s and the velocity at the exit is 150 m/s. If To = 300 K and Po = 1bar.

Estimate the jet velocity relative to the airplane : The GE J-79 turbo jet produces a thrust of 10,000lbs at sea level. The inlet diameter is 3.19 ft. If an airplane equipped with the J79 is flying at standard sea level with a velocity of 1,000 ft/sec, estimate the jet velocity relative to the airplane..

Piston-cylinder assembly executes a carnot power cycle : A quantity of water with in a piston-cylinder assembly executes a Carnot power cycle. During isothermal expansion, the water is heated from saturated liquid at 50 bar until it is a saturated vapour. The vapour then expands adiabatically to a pressure..

User Account

All Pages