Prbset01 - For each case calculate Q W t U ∆ and Assume...

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CHEMICAL ENGINEERING THERMODYNAMICS COURSE NO.: CHEG5301 STUDENT: ___________________ COURSE: Thermodynamics INSTRUCTOR: Prof. Anderson SUBJECT: Problem Set 01 DUE: Wednesday, Oct. 27, 2008 1. A metal sphere of 6 in. inside diameter is weighed on a precision beam balance when evacuated and again when filled to a pressure of 110 psia with an unknown gas. The difference in weight is 2.25 g. The temperature is 80 ° F. What is the gas, assuming it to be a pure substance? 2. One lb-mole of an ideal gas, initially at 80 ° F and 1 atm pressure, is changed to 220 ° F and 12 atm by three different processes.
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Unformatted text preview: For each case, calculate Q , W , t U ∆ , and . Assume that C t H ∆ P = 7 Btu/lb-mole-° F & C v = 5 Btu/lb-mole-° F. Also, assume reversible steps. (a) The gas is first heated at constant volume until the temperature is 220 ° F; then it is compressed isothermally until it's pressure is 12 atm. (b) The gas is first heated at constant pressure until it's temperature is 220 ° F; then it is compressed isothermally to 12 atm. (c) The gas is first compressed isothermally to 12 atm; then it is heated at constant pressure to 220 ° F....
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This note was uploaded on 08/26/2010 for the course CHEG 5301 taught by Professor Anderson during the Fall '08 term at UConn.

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