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1.18 A fuel gas containing 40% co, 10% CO, and rest N (by volume) is burnt completely with air in a furnace. The incoming and outgoing tempera- tures of the gases in the furnace are 500°c (773 K) and 977°c (1250 K) respectively. Calculate (a) the maximum flame temperature, and (b) heat supplied to the furnace per cu.ft of exhaust gas. Given: (i) AH°. 298,CO -26,400 cal/mole (-110,458 J/mol). (ii) AHO 298,C02 -94,000 cal/mole (-393,296 J/mol). - 6.8 + 0.95 x 10-3 T - 0.1 x 105 T-2 cal/deg/mole (28.45 + 3.97 x 108T- 0.42 x 10° J/K/mol). (iii) CP,co (iv) Cp,c02 - 10.6 + 2.2 x 10-3 T 2.0 x 105 T-? cal/deg/mole (44. 35 + 9.20 x 100T- 8.37 x 10 T J/K/mol). - 7.15 x 0.98 x 10-3T- 0.4 x 105 cal/deg/mole (29.92 + 4.10 x 20-8 7 -1.67 x 10 2 J/K/ mol). = 6.7 + 1.0 x 103 T cal/deg/mole (28.03 + 4.184 x 10-3 T J/K/mol). (v) Cp,02 (vi) Cp,N2

1.18 A fuel gas containing 40% co, 10% CO, and rest N (by volume) is burnt completely with air in a furnace. The incoming and outgoing tempera- tures of the gases in the furnace are 500°c (773 K) and 977°c (1250 K) respectively. Calculate (a) the maximum flame temperature, and (b) heat supplied to the furnace per cu.ft of exhaust gas. Given: (i) AH°. 298,CO -26,400 cal/mole (-110,458 J/mol). (ii) AHO 298,C02 -94,000 cal/mole (-393,296 J/mol). - 6.8 + 0.95 x 10-3 T - 0.1 x 105 T-2 cal/deg/mole (28.45 + 3.97 x 108T- 0.42 x 10° J/K/mol). (iii) CP,co (iv) Cp,c02 - 10.6 + 2.2 x 10-3 T 2.0 x 105 T-? cal/deg/mole (44. 35 + 9.20 x 100T- 8.37 x 10 T J/K/mol). - 7.15 x 0.98 x 10-3T- 0.4 x 105 cal/deg/mole (29.92 + 4.10 x 20-8 7 -1.67 x 10 2 J/K/ mol). = 6.7 + 1.0 x 103 T cal/deg/mole (28.03 + 4.184 x 10-3 T J/K/mol). (v) Cp,02 (vi) Cp,N2

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1.18 A fuel gas containing 40% Co, 10% co, and rest N, (by volume) is burnt completely with air in a furnace. The incoming and outgoing tempera- tures of the gases in the furnace are 500°c (773 K) and 977°c (1250 K) respectively. Calculate (a) the maximum flame temperature, and (b) heat supplied to the furnace per cu. ft of exhaust gas. Given: (i) AR 298,CO -26,400 cal/mole (-110,458 J/mol). (ii) AHO. 298,CO2 -94,000 cal/mole (-393,296 J/mol). - 6.8 + 0.95 x 10-3 T - 0.1 x 105 T-2 cal/deg/mole (28.45 + 3.97 x 10 T- 0.42 x 10 J/K/mol). (111) Cp,co (iv) Cp,co2 = 10.6 + 2.2 x 10-3 T - 2.0 x 105 12 cal/deg/mole (44. 35 + 9.20 x 10T- 8.37 x 10 J/K/mol). (v) Cp,02 = 7.15 x 0.98 x 103T 0.4 x 105 T2 cal/deg/mole (29.92 + 4.10 x 20-8 T -1.67 x 10 T2 J/K/ mol). (vi) CP,N2 6.7 + 1.0 x 10-3I cal/deg/mole (28.03 + 4.184 x 103 T J/K/mol). %3D
Transcribed Image Text:1.18 A fuel gas containing 40% Co, 10% co, and rest N, (by volume) is burnt completely with air in a furnace. The incoming and outgoing tempera- tures of the gases in the furnace are 500°c (773 K) and 977°c (1250 K) respectively. Calculate (a) the maximum flame temperature, and (b) heat supplied to the furnace per cu. ft of exhaust gas. Given: (i) AR 298,CO -26,400 cal/mole (-110,458 J/mol). (ii) AHO. 298,CO2 -94,000 cal/mole (-393,296 J/mol). - 6.8 + 0.95 x 10-3 T - 0.1 x 105 T-2 cal/deg/mole (28.45 + 3.97 x 10 T- 0.42 x 10 J/K/mol). (111) Cp,co (iv) Cp,co2 = 10.6 + 2.2 x 10-3 T - 2.0 x 105 12 cal/deg/mole (44. 35 + 9.20 x 10T- 8.37 x 10 J/K/mol). (v) Cp,02 = 7.15 x 0.98 x 103T 0.4 x 105 T2 cal/deg/mole (29.92 + 4.10 x 20-8 T -1.67 x 10 T2 J/K/ mol). (vi) CP,N2 6.7 + 1.0 x 10-3I cal/deg/mole (28.03 + 4.184 x 103 T J/K/mol). %3D
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