A certain oxygen cylinder has a capacity of 250 litres and contains oxygen at a pressure of 3 MPa and temperature of 20°C. The stop valve is opened and some oxygen is used. If the pressure and temperature of the oxygen left in the cylinder falls to 1.8 MPa and 16°C respectively, determine the mass of oxygen used. If after the stop valve is closed the oxygen remaining in the cylinder attains its original temperature of 20°C, determine the amount of heat transferred through the cylinder walls from the atmosphere. The density of the oxygen at 0°C and 0.1013 MPa is 1.43 kg/m° and C, / C, = 1.4. %3D

A certain oxygen cylinder has a capacity of 250 litres and contains oxygen at a pressure of 3 MPa and temperature of 20°C. The stop valve is opened and some oxygen is used. If the pressure and temperature of the oxygen left in the cylinder falls to 1.8 MPa and 16°C respectively, determine the mass of oxygen used. If after the stop valve is closed the oxygen remaining in the cylinder attains its original temperature of 20°C, determine the amount of heat transferred through the cylinder walls from the atmosphere. The density of the oxygen at 0°C and 0.1013 MPa is 1.43 kg/m° and C, / C, = 1.4. %3D

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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