2.46 WP A gas contained in a piston-cylinder assembly undergoes two processes, A and B, between the same end states, 1 and 2, where P₁ = 1 bar, V₁ = 1 m³, U₁ = 400 kJ and p₂ = 10 bar, V₂ = 0.1 m³, U₂ = 450 kJ: Process A: Constant-volume process from state 1 to a pressure of 10 bar, followed by a constant-pressure process to state 2. Process B: Process from 1 to 2 during which the pressure- volume relation is pV = constant. Kinetic and potential effects can be ignored. For each of the processes A and B, (a) sketch the process on p-V coordinates, (b) evaluate the work, in kJ, and (c) evaluate the heat transfer, in kJ.

2.46 WP A gas contained in a piston-cylinder assembly undergoes two processes, A and B, between the same end states, 1 and 2, where P₁ = 1 bar, V₁ = 1 m³, U₁ = 400 kJ and p₂ = 10 bar, V₂ = 0.1 m³, U₂ = 450 kJ: Process A: Constant-volume process from state 1 to a pressure of 10 bar, followed by a constant-pressure process to state 2. Process B: Process from 1 to 2 during which the pressure- volume relation is pV = constant. Kinetic and potential effects can be ignored. For each of the processes A and B, (a) sketch the process on p-V coordinates, (b) evaluate the work, in kJ, and (c) evaluate the heat transfer, in kJ.

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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Concept explainers

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.

Question

2.46 WP A gas contained in a piston-cylinder assembly undergoes
two processes, A and B, between the same end states, 1 and 2, where
PL 1 bar, V₁ = 1 m³, U₁ = 400 kJ and p₂ = 10 bar, V₂ = 0.1 m³,
U₂ = 450 kJ:
Process A: Constant-volume process from state 1 to a pressure
of 10 bar, followed by a constant-pressure process to state 2.
Process B: Process from 1 to 2 during which the pressure-
volume relation is pV = constant.
Kinetic and potential effects can be ignored. For each of the processes
A and B, (a) sketch the process on p-V coordinates, (b) evaluate the
work, in kJ, and (c) evaluate the heat transfer, in kJ.

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