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Split_00050 - 9.37 bg bg bg bg CObgg H Ob vg CO bgg H bgg C...

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9- 50 9.37 C H g 3H O v 3CO g 7H g 3 8 2 2 b g b g b g b g + + CO g H O v CO g H g 2 2 b g b g b g b g + + 2 Basis : 1 mol C H fed 3 8 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 3 8 (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 ξ 2 be the extents of the two reactions. n n 1 1 0 1 1 1 1 = = = ξ ξ mol n 4 2 = ξ n n 2 1 2 1 2 2 6 3 3 1 = = = ξ ξ ξ ξ n n 5 1 2 1 5 2 7 7 1 = + = + = ξ ξ ξ ξ n n 3 1 2 1 3 2 3 3 1 = = = ξ ξ ξ ξ References : C(s), H g O g 2 2 b g b g , at 25 ° C, heating gas at 900 ° C ± ± H H C dT C dT C T i pi T p T p = + = = = z z Δ fi o 3 8 2 2 2 for C H Table B.8 for CO , H , H O, CO for heating gas 25 900 900 b g Substance mol kJ / mol mol
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