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Unformatted text preview: Calculate the work done when a gas expands from 150 kPa and 0.003 m 3 to a final volume of 0.2 m 3 for the case of n=1.3. #5 (4-5) The volume of 1 kg of helium in a piston cylinder device is initially 5 m 3 . Now helium is compressed to 3 m 3 while its pressure is maintained constant at 200 kPa. Determine the initial and final temperatures of the helium as well as the work required to compress it in kJ. #6 (2-99) The inner and outer surfaces of a 0.5 cm thick 2 m x 2m window glass in winter are 10 o C and 3 o C respectively. If the thermal conductivity of the glass is 0.78 W/m o C, determine the amount of heat loss, in kJ, through the glass over a period of 5 h. What would your answer be if the glass were 1 cm thick?...
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This note was uploaded on 09/04/2009 for the course CHEM 2300 taught by Professor Thermo during the Summer '08 term at University of Utah.
- Summer '08