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Oxygen (O2) is contained within a horizontal piston-cylinder system initially at 500 kPa, 200°C, and occupies a volume of 0.04 m3 . The gas expands according to the process described by pV1.15 = Constant, until the temperature reaches 97°C. Considering oxygen as an ideal gas and taking the specific heat of oxygen as constant at an average temperature between two states, a) Determine the final pressure (in kPa) and volume (m3). b) Determine the amount of work and heat transfer during the process, in kJ. c) Find the entropy production in this process (in kJ/K) if the boundary temperature is taken as 350°C. d) Write down the main sources of irreversibilities. e) Draw the processes on P-v and T-s diagrams.

Oxygen (O2) is contained within a horizontal piston-cylinder system initially at 500 kPa, 200°C, and occupies a volume of 0.04 m3 . The gas expands according to the process described by pV1.15 = Constant, until the temperature reaches 97°C. Considering oxygen as an ideal gas and taking the specific heat of oxygen as constant at an average temperature between two states, a) Determine the final pressure (in kPa) and volume (m3). b) Determine the amount of work and heat transfer during the process, in kJ. c) Find the entropy production in this process (in kJ/K) if the boundary temperature is taken as 350°C. d) Write down the main sources of irreversibilities. e) Draw the processes on P-v and T-s diagrams.

Elements Of Electromagnetics
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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Oxygen (O2) is contained within a horizontal piston-cylinder system initially at 500 kPa, 200°C, and occupies a volume of 0.04 m3 . The gas expands according to the process described by pV1.15 = Constant, until the temperature reaches 97°C. Considering oxygen as an ideal gas and taking the specific heat of oxygen as constant at an average temperature between two states,

a) Determine the final pressure (in kPa) and volume (m3).

b) Determine the amount of work and heat transfer during the process, in kJ.

c) Find the entropy production in this process (in kJ/K) if the boundary temperature is taken as 350°C.

d) Write down the main sources of irreversibilities.

e) Draw the processes on P-v and T-s diagrams.

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