A piston-cylinder has a volume of 1 ft3 and contains a substance initially at 50 °F...

A piston-cylinder has a volume of 1 ft3 and contains a substance initially at 50 °F and 1 atm. The system is then heated until the temperature becomes 300 °F. Determine the total heat added (Btu) and final volume (ft3) assuming the substance is: a) water, b) copper, c) neon, d) air.

Solutions

Expert Solution

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

A piston–cylinder assembly contains propane, initially at 27°C, 1 bar, and a volume of 0.1 m3....

A piston–cylinder assembly contains propane, initially at 27°C, 1 bar, and a volume of 0.1 m3. The propane undergoes a process to a final pressure of 4 bar, during which the pressure–volume relationship is pV1.1 = constant. For the propane, evaluate the work and heat transfer, each in kJ. Kinetic and potential energy effects can be ignored.

Consider a piston cylinder device with a volume of 0.04 m3 and initially contains air at 293 K and 1 bar.

Consider a piston cylinder device with a volume of 0.04 m3 and initially contains air at 293 K and 1 bar. It is desired to reverse the cycle and use it as a refrigerator. In this case the process would begin with PV1.36 = constant process from an initial state of 293 K and a pressure of 10 Bars. The gas is allowed to expand to a volume 3.5 times the volume of state 1. It then follows a...

The volume of 1 kg of helium in a piston-cylinder device is initially 7 m3 ....

The volume of 1 kg of helium in a piston-cylinder device is initially 7 m3 . Now helium is compressed to 3 m3 while its pressure is maintained constant at 150 kPa. Determine the initial and final temperatures of helium as well as the work required to compress it, in kJ. You may assume deal gas behavior.

A cylinder fitted with a piston has an initial volume of 0.1 m3 and contains nitrogen...

A cylinder fitted with a piston has an initial volume of 0.1 m3 and contains nitrogen at 150 kPa, 25 0C. The piston is moved, compressing the nitrogen until the pressure is 1 MPa and the temperature is 150 0C. During this compression process heat is transferred from the nitrogen, and the work done on the nitrogen is 20 kJ. Determine the amount of this heat transfer.

A piston-cylinder apparatus contains argon at initial conditions of 15 psia, 70F, and 0.30 ft3. The...

A piston-cylinder apparatus contains argon at initial conditions of 15 psia, 70F, and 0.30 ft3. The argon is then compressed slowly and frictionlessly to a final pressure of 150 psia. Heat transfer between the argon and the surroundings at 60F causes the temperature to remain constant throughout the compression process. Determine (a) the argon mass (lbm), (b) the final volume (ft3), (c) the work for the process (ft-lbf), (d) the heat transfer (BTU), and (f) the total entropy generation for...

A monatomic ideal gas is contanined in a cylinder with a moveable piston. Initially the volume...

A monatomic ideal gas is contanined in a cylinder with a moveable piston. Initially the volume of the cylinder is 0.25m^3. The gas is compressed under a constant pressure of 3 Pa until the volume has been halved. Then the volume is held constant while the pressure is doubled. Finally, the gas is allowed to expand isothermally back to its original condition. a)Sketch a P-V diagram for this process. Label the corners 1, 2, 3 with 1 being the beginning...

A piston-cylinder device, whose piston is resting on a set of stops, initially contains 2 kg...

A piston-cylinder device, whose piston is resting on a set of stops, initially contains 2 kg of air at 300 kPa and 27ºC. The mass of the piston is such that a pressure of 600 kPa is required to move it upward. Heat is now transferred to the air until its volume doubles. a) Determine the work done by the air and b) the total heat transferred to the air during this process. c) Also, sketch the process on a...

A piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 600°F. The water...

A piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 600°F. The water undergoes two processes in series: a constant-pressure process followed by a constant volume process. At the end of the constant-volume process, the temperature is 300°F and the water is a two-phase liquid–vapor mixture with a quality of 50%. Neglect kinetic and potential energy effects. Determine the work and heat transfer for each process, all in Btu.

A piston-cylinder assembly has initially a volume of 0.3 m3 of air at 25 oC. Mass...

A piston-cylinder assembly has initially a volume of 0.3 m3 of air at 25 oC. Mass of the air is 1 kg. Weights are put on the piston until the air reaches to 0.1 m3 and 1,000 oC, in which the air undergoes a polytropic process (PVn = const). Assume that heat loss from the cylinder, friction of piston, kinetic and potential effects are negligible. 1) Determine the polytropic constant n. 2) Determine the work transfer in kJ for this...

A piston/cylinder system initially holds air at a pressure of 5.5 psig in a volume of...

A piston/cylinder system initially holds air at a pressure of 5.5 psig in a volume of 1 ft^3. The ambient pressure oitside the cylinder is 14.5 psia. The cylinder sits in an insulated bath containing 60 lbm of water. The contents are compressed to 100 psia. Intially they both have a temp of 50 F. After compression both air and water have a final temp of 51 F a) Find the mass of air in cylinder in lbm b) Hiw...

Subjects