Elementary Principles 402

Elementary Principles 402 - 9.37 bg bg bg bg CObgg + H Ob...

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9- 50 9.37 CHg3 HO v 3 C O g7 Hg 38 2 2 bg +→ + CO g H O v CO g H g 22 +→+ 2 Basis : 1 mol C H fed 1 mol C H (g ) 4.94 m at 1400°C, 1 atm 3 (mol), 900°C n g Heating gas 3 8 6 mol H O( g ) 2 125°C a Product gas, 800°C (mol C H ) = 0 n 1 (mol H O) n 2 2 (mol CO) n 3 (mol CO ) n 4 2 (mol H ) n 5 2 (mol) n g n g == 4.94 m L 273 K 1 mol 1 m 1673 K 22.4 L mol heating gas 3 3 10 3599 3 . Let ξ 1 and 2 be the extents of the two reactions. n n 11 0 1 1 =− ⇒ = = ξξ mol n 42 = nn 21 2 1 63 3 1 =− − ⇒ =− = 51 2 1 52 77 1 =+ = + = 31 2 1 32 33 1 = = References : C(s), HgOg , at 25 ° C, heating gas at 900 ° C ±± HH C d T Cd T C T ip i T p T p = z z Δ fi o 222 for C H Table B.8 for CO , H , H O, CO for heating gas 25 900 900 Substance mol kJ / mol mol kJ / mol CH 1 CO CO H heating gas in in
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