Elementary Principles 363 - 9.15 (cont'd) = (n CH4 )out -...

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9- 11 d. () 44 4 CH out CH in CH rr (n ) ) 0.75 0.01286 mol 0.009645 mol 1 0.0340 kJ ˆˆ 600 C 600 C 3.53 kJ/mol 0.009645 HH H ξ ν × === Δ=Δ ° ⇒ Δ ° = = ΔΔ ±± [ UH R T i i 600 600 °= °− CC gaseous products gaseous reactants ] bg bg νν ( ) 3 8.314 J 1 kJ 873 K 1 1 1 1 3.53 kJ mol 18.0 kJ mol mol K 10 J ++− =− ( ) ˆ 600 C (0.009645 mol)( 18.0 kJ/mol) 0.174 kJ (transferred from reactor) r QU = 9.16 a. SO g) 1 2 Og ) S O ( g ) 22 3 (( +→ Basis : l00 kg SO 10 mol SO min 80.07 kg SO mol SO min 3 3 3 3 3 = 1249 n 1 mol O /min 2 n 0 mol SO /min 2 450°C 100% excess n 1 mol O /min 2 3.76 450°C 1249 mol SO /min 3 s n 0 mol SO /min 2 n 3 mol O /min 2 n 1 mol O 2 3.76 550°C m w (kg H O( /h) l) 2 25°C m w (kg H O(l) /h) 2 40°C Assume low enough pressure for ± H to be independent of P . Generation output 3 3 3 2 SO balance : (mol SO fed) 0.65 mol SO react 1 mol SO produced min mol SO fed 1 mol SO react mol SO min mol SO / min fed
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