Gas is contained in a vertical piston-cylinder assembly

Assignment Help Mechanical Engineering

Reference no: EM13711559

Gas is contained in a vertical piston-cylinder assembly. The initial volume of the gas is 0.1 m3 and the initial pressure is 500 kPa. The gas undergoes a quasi equilibrium expansion process to a final volume of 0.25 m3. For each case below, determine the work done [kJ] by the gas and sketch the process on a p? Diagram (be sure to label initial and final states, and show process direction):

a. As the piston rises, the pressure remains constant, i.e., p = constant

b. As the piston rises, p? = constant

c. As the piston rises, p?^(1.4) = constant

Reference no: EM13711559

Questions Cloud

Solar energy collector produces a maximum temperature : A solar energy collector produces a maximum temperature of 100°C. The collected energy is used in a cyclic heat engine that operates in a 5°C environment. Estimate the thermal efficiency if the engine operates at 40% of Carnot efficiency. How would t..

Steady-state conditions with negligible inlet velocity : Air enters a well-insulated turbine operating at steady-state conditions with negligible inlet velocity, 4 MPa, and 100°C. The air expands to an exit pressure of 100 kPa. The exit velocity and temperature are 90 m/s and 100°C, respectively. The diame..

The ratio of mass flow rates of warm to cold air streams : In air-conditioning systems, streams of cold and warm air are mixed to get air with the right temperature. Consider a mixing chamber into which cold air enters at 8C and 100 kPa at a rate of 0.55 m^3 /s and warm air enters at 300C and 100 kPa. The ra..

What is the volume occupied by each gas at equilibrium : An insulated rigid container is separated into two parts using a partition that is free to move and the partition allows heat transfer without any energy storage by itself. Initially 2 kg of air at 5 bar and 350 K is contained on one side of the part..

Gas is contained in a vertical piston-cylinder assembly : Gas is contained in a vertical piston-cylinder assembly. The initial volume of the gas is 0.1 m3 and the initial pressure is 500 kPa. The gas undergoes a quasi equilibrium expansion process to a final volume of 0.25 m3. For each case below, determine..

Determine the heat transfer for the process : A closed system of mass 10 kg undergoes a process during which there is energy transfer by work from the system of 0.147 kJ/kg, an elevation decrease of 50 m, and an increase in velocity from 15 m/s to 30 m/s. The specific internal energy decreases b..

The rate of heat transfer from the air to the walls is small : A 1.5 kilowatt heater is to be used to heat a room with dimensions 3.5 m × 5.0 m × 3.0 m. There are not heat losses from the room, but the room is not airtight, so that the pressure in the room is always atmospheric. Consider the air in the room to b..

Determine the specific internal energy at the final state : A vertical piston/cylinder device contains 0.01 lbm of gas. The initial gas volume is 0.18 ft3 and the initial specific internal energy is 282 Btu/lbm. The piston, with a mass of 110 lbm and cross-sectional area of 0.11 ft2, is in equilibrium with th..

Find the reservoir that the stream of water exiting nozzle : A fire truck draws water from an open constant-level reservoir through a hose of 0.2 ft2 cross section. The water is discharged from the pump through another 0.2 ft2 hose to a surge tank pressurized to 120 psig with air at the top. The pump adds 970 ..

User Account

All Pages