Calculate the higher and lower heating values of gaseous methane fuel (CH₄). Compare your results with the values in Table A–27.

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TABLE A-27 Properties of some common fuels and hydrocarbons Higher heating value, kJ/kg Lower Enthalpy of vaporization,? kJ/kg Molar Density, kg/L Specific heat,' Cp kJ/kg-K heating value, kJ/kg 2 mass, Fuel (phase) Formula kg/kmol Carbon (s) Hydrogen (g) Carbon monoxide (g) CO Methane (g) Methanol (I) Acetylene (g) Ethane (g) Ethanol (I) Propane (I) Butane (I) 1-Pentene (I) Isopentane (1) Benzene (1) Hexene (I) Hexane (I) Toluene (I) Heptane (I) Octane (1) Decane (I) Gasoline (I) Light diesel (I) Heavy diesel (I) Natural gas (g) 32,800 141,800 10,100 55,530 22,660 49,970 51,900 29,670 50,330 49,150 47,760 48,570 41,800 47,500 48,310 42,400 48,100 47,890 47,640 47,300 46,100 45,500 C 12.011 0.708 32,800 120,000 10,100 50,050 19,920 48,280 47,520 26,810 46,340 45,370 44,630 44,910 40,100 H, 2.016 28.013 14.4 1.05 16.043 32.042 26.038 CH, CH,O C,H, C,H, C,H,O CHs CH10 CH10 CH12 CH, CH12 CH14 C,H, CH16 CH1S C0H22 C,HL87n 509 1168 2.20 0.790 2.53 1.69 30.070 46.069 172 919 335 362 363 1.75 0.790 2.44 44.097 0.500 2.77 58.123 70.134 72.150 0.579 0.641 2.42 2.20 2.32 0.626 0.877 433 392 366 412 78.114 1.72 84.161 0.673 1.84 44,400 44,740 40,500 44,600 44,430 44,240 44,000 43,200 42,800 45,000 86.177 0.660 0.867 2.27 1.71 2.24 92.141 100.204 114.231 0.684 0.703 365 363 2.23 142.285 0.730 361 2.21 100–110 170 0.72-0.78 0.78-0.84 350 270 2.4 2.2 200 0.82–0.88 230 1.9 CH3 8No.in 18 50,000 n* *3.8n