Elementary Principles 452 - 10.5 a. n 1 (mol CO) n 2 (mol...

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10- 4 10.5 a. (mol CO) n 1 (mol H ) n 22 (mol C H ) n 33 6 reactor (mol C H ) n 43 6 (mol CO) n 5 (mol H ) n 62 (mol C H O) n 77 8 (mol C H OH) n 84 7 (kg catalyst) n 9 Flash tank (mol C H ) n 11 3 6 (mol CO) n 12 (mol H ) n 13 2 (mol C H O) n 14 7 8 (mol C H OH) n 15 4 7 Separation (mol C H ) n 16 3 6 (mol CO) n 17 (mol H ) n 18 2 (mol C H O) n 19 7 8 (mol C H OH) n 20 4 7 Hydrogenator (mol H ) n 21 2 (mol H ) n 22 2 (mol C H OH) n 20 4 7 Reactor: 10 6 2 6 11 6 variables material balances reactions degrees of freedom nn + bg Flash Tank: 12 6 41 5 variables material balances 6 degrees of freedom Separation: 10 5 11 20 variables material balances 5 degrees of freedom Hydrogenator: 5 3 1 3 19 23 variables material balances reaction degrees of freedom + Process: 20 14 Local degrees of freedom ties 6 overall degrees of freedom The last answer is what one gets by observing that 14 variables were counted two times
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