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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Solve the following numerical of engineering using python code:
Part 1.) One kilogram of steam with a quality of 20 percent is heated at a constant pressure
of 200 kPa until the temperature reaches 400°C. Calculate the work done by the
steam.
Part 2.) A 110-mm-diameter cylinder contains 100 cm^3 of water at 60°C. A 50-kg piston
sits on top of the water. If heat is added until the temperature is 200°C, find the
work done.
Part 3.) Energy is added to a piston-cylinder arrangement, and the piston is withdrawn in
such a way that the temperature (i.e., the quantity PV) remains constant. The
initial pressure and volume are 200 kPa and 2 m^3, respectively. If the final pressure
is 100 kPa, calculate the work done by the ideal gas on the piston.
Part 4.) A 100-kg mass drops 3 m, resulting in an increased volume in the cylinder of 0.002 m^3. The
weight and the piston maintain a constant gauge pressure of 100 kPa. Determine the net work done by
the gas on the surroundings. Neglect all friction.
Part 5.) The drive shaft in an automobile delivers 100 N m of torque as it rotates at 3000
rpm. Calculate the horsepower transmitted.
Part 6.) A paddle wheel adds work to a rigid container by rotations caused by dropping a
50-kg weight a distance of 2 m from a pulley. How much heat must be transferred
to result in an equivalent effect?
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