An ideal gas with a molecular weight of 6.5 kg/kgmol is compressed in reversible manner from 690 kPaa and 277 K to a final specific volume of 0.47 m2/kg according to p 561+ 200v + 100v², where p is the pressure in kPaa and v is the specific volume in m2/kg. If c, 0.837 kJ/kg-K, determine (a) the initial specific volume (m3/kg), (b) the work done (kJ/kg), and (c) the heat transferred in kJ/kg.

An ideal gas with a molecular weight of 6.5 kg/kgmol is compressed in reversible manner from 690 kPaa and 277 K to a final specific volume of 0.47 m2/kg according to p 561+ 200v + 100v², where p is the pressure in kPaa and v is the specific volume in m2/kg. If c, 0.837 kJ/kg-K, determine (a) the initial specific volume (m3/kg), (b) the work done (kJ/kg), and (c) the heat transferred in kJ/kg.

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.

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PROBLEM # 5
An ideal gas with a molecular weight of 6.5 kg/kgmol is compressed in reversible manner
from 690 kPaa and 277 K to a final specific volume of 0.47 m/kg according to p = 561 + 200v + 100v²,
where p is the pressure in kPaa and v is the specific volume in m/kg. If c, = 0.837 kJ/kg•K, determine
(a) the initial specific volume (m3/kg), (b) the work done (kJ/kg), and (c) the heat transferred in kJ/kg.

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