Q1. In a piston-cylinder assembly attached with spring load is filled with 60 kg of water at pressure of 250 kPa and temperature of 25°C. The piston has base area of 0.1 m² (see Figure Q1). Heat is added into the water and the volume expands to 0.2 m? and just touches the spring that has spring constant k =100 kN/m. Further heat is added and the piston starts to push the spring and the piston rises 20 cm compressing the spring. By considering the necessary assumptions, determine (a) the pressure and temperature at the end of the process, (b) the work done in the process, and discuss about the significant of the sign of work done on the process. (c) show the process on P-V diagram, and discuss the initial state and final state of the water.
Q1. In a piston-cylinder assembly attached with spring load is filled with 60 kg of water at pressure of 250 kPa and temperature of 25°C. The piston has base area of 0.1 m² (see Figure Q1). Heat is added into the water and the volume expands to 0.2 m? and just touches the spring that has spring constant k =100 kN/m. Further heat is added and the piston starts to push the spring and the piston rises 20 cm compressing the spring. By considering the necessary assumptions, determine (a) the pressure and temperature at the end of the process, (b) the work done in the process, and discuss about the significant of the sign of work done on the process. (c) show the process on P-V diagram, and discuss the initial state and final state of the water.
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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