A system consisting of 2 kg of water initially at 130°C, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 2700 kJ. Determine the final pressure, in bar, and the work by the system, in kJ.

A system consisting of 2 kg of water initially at 130°C, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 2700 kJ. Determine the final pressure, in bar, and the work by the system, 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

A system consisting of 2 kg of water initially at 130°C, 10 bar
undergoes an internally reversible, isothermal expansion during
which there is energy transfer by heat into the system of 2700 kJ.
Determine the final pressure, in bar, and the work by the system, in
kJ.

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Step 1: Determine final pressure in the bar and the work done by system.

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Step 2: Calculate the final pressure in the bar and the work done by system.

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Step 3: Calculate the work done by system.

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