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Methane at 25°C is burned in a boiler furnace with 10.0% excess air. The air enters...

Methane at 25°C is burned in a boiler furnace with 10.0% excess air. The air enters the burner at a temperature of 100°C. Ninety percent of the methane fed is consumed; the product gas is analyzed and found to contain 10.0 mol CO2 per 1 mol of CO. The exhaust gases exit the furnace at 400°C. Calculate the rate of heat transferred from the furnace, given that a molar flow rate of 100 mol/s CH4 is fed to the furnace.

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Expert Solution

Cp/R = A +BT +CT2 + DT-2    Where T is in K from 298 oK
Name Chemical formula Tmax CpigP298/R A B*103 C*106 D*10+5
Methane CH4 1500 4.217 1.702 9.081 -2.164 0
Carbon monoxide CO 3000 3.507 3.376 0.557 0 -0.031
Carbon dioxide CO2 2500 4.467 5.457 1.045 0 -1.157
Nitrogen N2 2000 3.502 3.28 0.593 0 0.04
Oxygen O2 2000 3.535 3.639 0.506 0 -0.227
Water H2O 2000 4.038 3.47 1.45 0 0.121
Compound F1 HF1 F1*HF1
O2 220 2375.001 522500.2
N2 827.62 2169.356 1795402
Total 2317903
Compound F1 HF1 F1*HF1
CH4 10 17385.93 173859.3
C0 81.82 11368.9 930203.2
CO2 8.18 18595.83 152113.9
N2 827.62 11124.1 9206529
O2 68.63 12111.64 831222.2
H20 180 13014.09 2342536
Total 13636464

Amanda K answered 2 years ago
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