Reconsider Prob. 15-42. Using EES (or other) software, study the effect of temperature on the enthalpy of combustion. Plot the enthalpy of combustion as a function of temperature over the range 25 to 600oC.

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TABLE A-26 Enthalpy of formation, Gibbs function of formation, and absolute entropy at 25°C, 1 atm Formula kJ/kmol J/k kJ/kmK Hydrogen 0 130.68 0 191.61 0 205.04 -137,150 197.65 393,520 394,360 213.80 228,590 188.83 ー285,830 ー237,180 69.92 105,600 232.63 16,590 192.33 -50,790 186.16 C2H2g) +226,730 +209,170 200.85 +52,280 +68,120 219.83 32,890 229.49 +62,720 266.94 23,490 269.91 15,710 310.12 -208,450+16,530 466.73 +6,610 360.79 C12H26(g) 291,010 +50,150 622.83 +82,930 +129,660 269.20 CH30H(g) 200,670 162,000 239.70 CH3OH(f) 一238,660-166,360 126.80 C2H50H(g 235,310 -168,570 282.59 C2H OH(e)277,690 -174,890 160.70 +249,190 +231,770 161.06 +218,000 +203,290 114.72 +472,650 +455,510 153.30 +39,460 +34,280 183.70 Carbon monoxide Carbon dioxide Water vapor CO(g) 110,530 Hydrogen peroxide H202g 136,310 ene Ethylene Propylene +20,410 C3H (g) 103,850 126,150 249,950 n-Dodecane Methyl alcohol Methyl alcohol Ethyl alcohol Ethyl alcohol Hydrogen Source of Data: From JANAF, Thermochemical Tables (Midland, Ml: Dow Chemical Co., 1971); Selected Values of Chemical Thermodynamic Properties, NBS Technical Note 270-3, 1968; and API Research Project 44 (Carnegie Press, 1953). 109258336914756 4202 367073567 88156996317585341863150 21052919097817828777650 34152452544444444444445 0 50395472022471431 7402567474237827222429 04122112222211212222212 8 , 2 9 5 2 3 . 3262531000 51-19333 | 4334333322 Er ak 9167307430 755668668677 0000000000000 0. 0. 4150 1.0 3 3 2 8 0 9 7 3 404171 923 2,: 8 6 2 6 0 6 4 8 0 2 8 4 620420008 - 21323445777 089 111-12 02606 8 1 1 2 6 12 4 8 6 8 22 113 eonett