Question

steam is contained in a piston and cylinder assemble at a pressure of 5 bar and temperature of 700 degrees celcius. At this initial condition, the cylinder is restrained by stops since the pressure is applied on piston only supprts a pressure of 3 bar in the cylinder. The initial volume of system is 1m^3 and cooling is applied to the system until final volume is 0.1m^3. Determine work and heat transfer.

Answer #1

The piston-cylinder system is filled with a steam of 2.5m3 at 10
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(1) steam mass; (2) final temperature; (3) heat transfer;

A piston-cylinder device contains 0.54 kg of steam at 300
degrees C and 3 MPa. Steam is cooled at constant pressure until
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Determine the volume change

Three kilograms (3.0 kg) of saturated steam at 162oC is held in
a closed piston-cylinder apparatus with a weighted piston that
exerts a constant force on the steam. The piston-cylinder apparatus
loses energy to the surroundings such that at a certain point 50%
of the steam has condensed to a saturated liquid inside the
cylinder (NOTE: the vapor and liquid are still saturated at the new
condition).
a. For the process described above, determine the heat exchange
with the surroundings....

Oxygen gas is contained in a piston cylinder assembly at an
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process where PV = constant. The gas has an internal energy change
of -200 kJ. Calculate the work (kJ) and the heat transfer (kJ) done
during the process.

Think of the piston-cylinder system. Initially, it is filled
with pressure of 8 atmosphere, water of 0.1 m3 and steam of 0.9 m3.
The piston moved freely and heat was transferred to expand,
resulting in a final temperature of 350oC.
(1) Initial temperature (2) Total mass of H2O (3) Final volume (4)
Marked on the P-v lead

One kg of water in a piston-cylinder assembly
undergoes two processes in series from an initial state where p1 =
0.8 MPa, T1 = 500°C:
Process 1-2: Constant-pressure compression until the
volume is half of
the initial volume.
Process 2-3: Constant-volume cooling until the
pressure drops to 400 kPa.
Sketch the two processes in series on a p-v and T-v
diagram. Determine the work and heat transfer for both
processes.

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2. The cylinder contains 0.1 kg of water vapor, and the
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internal energy of water vapor...

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degrees C, and an initial pressure of 16 pounds per square inch.
Then the piston is slowly moved so that the steam's volume is
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Calculate:
a. the final pressure
b. the work done by the steam
c. the change in the steam's internal energy
d. the change in entropy of...

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Please show all the steps, and please do not...

A piston-cylinder device with a set of stops initially contains
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the final state is (A) 1.0 MPa and 600 degrees C and W=. kJ (B) 500
kPa. W=. kJ (C) Also determine the temperature at the final state
in part (B). T2=. C

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