3. A piston is resting on stops in a frictionless piston-cylinder device. The system contains waterwith a mass of 1 kg. The initial temperature is 30°C and the initial volume is 0.1 m³. The pressurerequired to raise the piston is 100 kPa. Find the work done if we add heat until the water iscompletely vapor (x=1). Find the heat added to the system. Draw and label the process on P-vand T-v diagrams.4. A frictionless piston-cylinder device contains 10 kg of water initially at 100 kPa and 100°C. If thevolume reaches 20 m³, the piston hits a set of stops and is restrained from further upwardtravel. Heat is added until the temperature is 200°C. Calculate the pressure at this point. Also,calculate the temperature when the piston first touches, but exerts no force, on the stops. Drawand label the process on P-v and T-v diagrams.

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Mechanical Engineering

n stops in a frictionless The initial temperature e piston is 100 kPa. Find ==1). Find the heat adde

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.

Question

3. A piston is resting on stops in a frictionless piston-cylinder device. The system contains water
with a mass of 1 kg. The initial temperature is 30°C and the initial volume is 0.1 m³. The pressure
required to raise the piston is 100 kPa. Find the work done if we add heat until the water is
completely vapor (x=1). Find the heat added to the system. Draw and label the process on P-v
and T-v diagrams.
4. A frictionless piston-cylinder device contains 10 kg of water initially at 100 kPa and 100°C. If the
volume reaches 20 m³, the piston hits a set of stops and is restrained from further upward
travel. Heat is added until the temperature is 200°C. Calculate the pressure at this point. Also,
calculate the temperature when the piston first touches, but exerts no force, on the stops. Draw
and label the process on P-v and T-v diagrams.

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