6- 146.24 (cont’d) −=−⇒==⇒ =−AABpTln(. / .),ln.exp(.())*40 0 500133912995269500526929919 2319 235269=(.)+KAt lower explosion limit, ypTyP=⇒==0 0080 008 760./()(.)(*kmol C Hkmolmm Hg)920= 6.08 mm Hg T=302 K = 29 Coc.The purpose of purge is to evaporate and carry out the liquid nonane. Using steam rather than air is to make sure an explosive mixture of nonane and oxygen is never present in the tank. Before anyone goes into the tank, a sample of the contents should be drawn and analyzed for nonane. 6.25 Basis: 24 hours of breathing23°C, 1 atmy1(mol H O/mol)+O2, CO2n1(mol) @hr= 10%0.79 mol N /mol22LungsO2CO237°C, 1 atmy2(mol H O/mol)2, CO2n2(mol), saturated0.75 mol N /mol22n0(mol H O)2Air inhaled: 12 breaths 500 ml1 liter273K1 mol60 min24 hrminbreath10 ml23273 K 22.4 liter STP1 hr1 daymol inhaled day13n=+=bgbg356Inhaled air - -10% r.h.:
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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.