A frictionless piston cylinder arrangement contains 1.1614 kg of air. The air is compressed adiabatically. Initially the air is at 100 kPa, 300K and has a volume of 1 m3. After compression the air is at 951.83 kPa, 571 K and has a volume of 0.20 m3. The air is an ideal gas with constant specific heats equal to Cp = 1.005 kJ/kgK and Cy = 0.718 kJ/kgK. What is the work required to compress the air in units of kJ? Select the answer that is closest to the true value. A) 339 B) 226 C) 426 D) 79.9 O A OB OD

A frictionless piston cylinder arrangement contains 1.1614 kg of air. The air is compressed adiabatically. Initially the air is at 100 kPa, 300K and has a volume of 1 m3. After compression the air is at 951.83 kPa, 571 K and has a volume of 0.20 m3. The air is an ideal gas with constant specific heats equal to Cp = 1.005 kJ/kgK and Cy = 0.718 kJ/kgK. What is the work required to compress the air in units of kJ? Select the answer that is closest to the true value. A) 339 B) 226 C) 426 D) 79.9 O A OB OD

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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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 frictionless piston cylinder arrangement contains 1.1614 kg of air. The air is compressed adiabatically. Initially the air is at 100 kPa, 300K and has a volume of 1 m3. After
compression the air is at 951.83 kPa, 571 K and has a volume of 0.20 m3. The air is an ideal gas with constant specific heats equal to Cp = 1.005 kJ/kgK and Cy = 0.718 kJ/kgK.
What is the work required to compress the air in units of kJ?
Select the answer that is closest to the true value.
A) 339 B) 226 C) 426 D) 79.9
A

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