gues pressure expansion at p = 4 bar to a final volume of V2 = 0.12 m³, while being slowly heated through the base. The change in inter energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoo n the cylinder. The local atmospheric pressure is 1 bar. Piston¬ Patm = 1 bar P,V2 V1 = 0.1 m³ (U2 – Uj) = 0.25 kJ Gas a) For the gas as the system, evaluate work and heat transfer, each in kJ. b) For the piston as the system, evaluate work and change in potential energy, each 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
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As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-
pressure expansion at p = 4 bar to a final volume of V2 = 0.12 m³, while being slowly heated through the base. The change in internal
energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoothly
in the cylinder. The local atmospheric pressure is 1 bar.
Piston-
Patm = 1 bar
P,V2
V1 = 0.1 m³
(U2- U1) = 0.25 kJ
Gas
(a) For the gas as the system, evaluate work and heat transfer, each in kJ.
(b) For the piston as the system, evaluate work and change in potential energy, each in kJ.
Transcribed Image Text:As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant- pressure expansion at p = 4 bar to a final volume of V2 = 0.12 m³, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. Piston- Patm = 1 bar P,V2 V1 = 0.1 m³ (U2- U1) = 0.25 kJ Gas (a) For the gas as the system, evaluate work and heat transfer, each in kJ. (b) For the piston as the system, evaluate work and change in potential energy, each in kJ.
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