Elementary Principles 155

# Elementary Principles 155 - 5.62 (cont'd) mO 2 = 32.0 lb m...

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5- 43 5.62 (cont’d) m V V MW = 2.5 ft 2.139 ft lb - mole lb lb - mole lb O 3 3 m m 2 == ± / . . 32 0 37 4 Ideal gas gives a conservative estimate. It calls for charging less O 2 than the tank can safely hold. c. 1. Pressure gauge is faulty 2. The room temperature is higher than 50 ° F 3. Crack or weakness in the tank 4. Tank was not completely evacuated before charging and O 2 reacted with something in the tank 5. Faulty scale used to measure O 2 6. The tank was mislabeled and did not contain pure oxygen. 5.63 a. SRK Equation of State: P = RT V-b a V V+b ±± ± did i α −+ = =− + multiply both sides of the equation by V V - b V + b f V =PV V-b V+b RTV V+b a V-b fV PV RTV a-bP-bRTV- ab=0 32 2 ± : ± ± ± ± ± di d i d id i d i d i αα 0 b. Problem 5.63-SRK Equation Spreadsheet Species CO2 Tc(K) 304.2 R=0.08206 m^3 atm/kmol K
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## This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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