Ms Png works on a piston-cylinder system which contains 0.05 m3 of nitrogen gas initially at 200 kPa. At this state, a linear spring that has a spring constant of 150 kN/m is touching the piston, but no force is exerting on it. Heat is then transferred to the nitrogen gas, causing the piston to rise and to compress the spring until the volume inside the cylinder increases to 0.25 m3. a) Determine the final pressure inside the cylinder. b) Sketch the system on a P – V diagram. c) Calculate the total work done of the system. d) Deduce the work done against the spring to compress it. Given cross-sectional area of the piston = 0.25 m2 Force applied by linear spring, F = kx k = spring constant x = displacement

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A: Givensuperheated R-134a m=10kgP1=1.88MPaT1=70oCcooled at constant pressure ie. P2=P1=1.88MPa…

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A: as per guideline i have to solve only three subpart of your question

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.