P.1 ((Application on Reversible process at Constant V and P)Air at 1 bar and 298.15 K (25 °C) is compressed to 5 bar and 298.15 K by two different mechanicallyreversible processes as follows:(a) Cooling at constant pressure followed by heating at constant volume.(b) Heating at constant volume followed by cooling at constant pressure.Calculate the heat and work requirements, AU, and AH of the air of each path. The following heat capacities forair may be assumed independent of temperature; C, = 20.78 and Cp 29.10 J/mole K.Assume also for air that PV/T is a constant, regardless of the changes it undergoes. At 298.15 K and 1 bar themolar volume of air is 0.02479 m/mole.

Given that: At initial state P = 100 kPa, T = 298.15 K At final state P = 500 kPa, T = 298.15 K…

Answered: Calculate the heat and work…

Calculate the heat and work requirements, AU, and AH of the air of each path. The following heat capacities for air may be assumed independent of temperature; C, 20.78 and Cp = 29.10 J/mole K.

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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Question

P.1 ((Application on Reversible process at Constant V and P)
Air at 1 bar and 298.15 K (25 °C) is compressed to 5 bar and 298.15 K by two different mechanically
reversible processes as follows:
(a) Cooling at constant pressure followed by heating at constant volume.
(b) Heating at constant volume followed by cooling at constant pressure.
Calculate the heat and work requirements, AU, and AH of the air of each path. The following heat capacities for
air may be assumed independent of temperature; C, = 20.78 and Cp 29.10 J/mole K.
Assume also for air that PV/T is a constant, regardless of the changes it undergoes. At 298.15 K and 1 bar the
molar volume of air is 0.02479 m/mole.

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