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	Cp^ig_P298/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 1 year ago

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