5- 375.54 (cont’d)Process feed: 0.0kmol / h25.3 kmol / hm (STP)kmolSCMH325461802223722 418 700....,+++FHGIKJFHGIKJ=bgReactor effluent flow rate: / hkmol / h25.3 kmol / skmol / h444 kmolh)kmolmSTPhK273.2 KkPa4925 kPamhstd3actual3349.4 kmol23744422 49946 SCMH995047321013354FHGIKJ=⇒FHGIKJFHGIKJ=⇒==±.±()../VVc. ²±±/.V=Vnh444 kmol / hLmkmol1000 molL/mol33==354 m1000108²V < 20 L / mol====>ideal gas approximation is poor(5.2-36)Most obviously, the calculation of ±V from ±n using the ideal gas equation of state is likely to lead to error. In addition, the reaction equilibrium expressions are probably strictly valid only for ideal gases, so that every calculated quantity is likely to be in error. 5.55a.PVRTBVB=RTPBBcco1²²=+ ⇒+1ωFrom Table B.1 for ethane: TK, PatmFrom Table 5.3-1 = 0.098BTKKBTK305.4Kccor1r===−=−=−305448 200830 4220 0830 422308 20 33301390172308 2002701144........
This is the end of the preview. Sign up
access the rest of the document.
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.