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1. Calculate the weight (number of pounds) of each rank of coal that would have to be burned to produce 3.5 million BTU (or 3,500,000 BTU) of heat, using the data in the table. Because a range of heating values (or energy output) is given for each coal rank, include a range in your answers. Weight of coal burned to produce 1 million BTU? (Kg) Carbon Content Heating value or energy output (BTU per pound) Coal Rank 5.50 x 10° to 8.30 x 10° BTU/lb (average= 6,900 BTU /lb) Lignite 46 - 60% 54.76Kg- 82.6Kg Sub- 46 - 60% 8.30 x 10° to 1.30 x 104 BTU /lb bituminous coal Bituminous 46 - 86% 1.10 x 104 to 1.50 x 104 BTU /lb coal Anthracite 86 - 98% 1.35 x 104 to 1.56 x 104 BTU /lb coal Sample computation for Lignite: 1 Kg 1.00lb 1.00 x 106 x = 82.6 Kg 5.50х 103 втU 2.20 lbs 1 Kg = 54.76Kg 1.00 lb 1.00 x 106 BTU x %3D 8.30 x 103 BTU ^ 2.20 lbs

1. Calculate the weight (number of pounds) of each rank of coal that would have to be burned to produce 3.5 million BTU (or 3,500,000 BTU) of heat, using the data in the table. Because a range of heating values (or energy output) is given for each coal rank, include a range in your answers. Weight of coal burned to produce 1 million BTU? (Kg) Carbon Content Heating value or energy output (BTU per pound) Coal Rank 5.50 x 10° to 8.30 x 10° BTU/lb (average= 6,900 BTU /lb) Lignite 46 - 60% 54.76Kg- 82.6Kg Sub- 46 - 60% 8.30 x 10° to 1.30 x 104 BTU /lb bituminous coal Bituminous 46 - 86% 1.10 x 104 to 1.50 x 104 BTU /lb coal Anthracite 86 - 98% 1.35 x 104 to 1.56 x 104 BTU /lb coal Sample computation for Lignite: 1 Kg 1.00lb 1.00 x 106 x = 82.6 Kg 5.50х 103 втU 2.20 lbs 1 Kg = 54.76Kg 1.00 lb 1.00 x 106 BTU x %3D 8.30 x 103 BTU ^ 2.20 lbs

Chemistry
Chemistry
10th Edition
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Calculate the weight (number of pounds) of each rank of coal that would have to be burned to produce 3.5 million BTU (or 3,500,000 BTU) of heat, using the data in the table. Because a range of heating values (or energy output) is given for each coal rank, include a range in your answers. Weight of coal burned to produce 1 million BTU? (Kg) Carbon Content Heating value or energy output (BTU per pound) Coal Rank 5.50 x 10° to 8.30 x 10° BTU/lb (average= 6,900 BTU /lb) Lignite 46 - 60% 54.76Kg- 82.6Kg Sub- 46 - 60% 8.30 x 10° to 1.30 x 104 BTU /lb bituminous coal Bituminous 46 - 86% 1.10 x 104 to 1.50 x 104 BTU /lb coal Anthracite 86 - 98% 1.35 x 104 to 1.56 x 104 BTU /lb coal Sample computation for Lignite: 1 Kg 1.00lb 1.00 x 106 x = 82.6 Kg 5.50х 103 втU 2.20 lbs 1 Kg = 54.76Kg 1.00 lb 1.00 x 106 BTU x %3D 8.30 x 103 BTU ^ 2.20 lbs
Transcribed Image Text:1. Calculate the weight (number of pounds) of each rank of coal that would have to be burned to produce 3.5 million BTU (or 3,500,000 BTU) of heat, using the data in the table. Because a range of heating values (or energy output) is given for each coal rank, include a range in your answers. Weight of coal burned to produce 1 million BTU? (Kg) Carbon Content Heating value or energy output (BTU per pound) Coal Rank 5.50 x 10° to 8.30 x 10° BTU/lb (average= 6,900 BTU /lb) Lignite 46 - 60% 54.76Kg- 82.6Kg Sub- 46 - 60% 8.30 x 10° to 1.30 x 104 BTU /lb bituminous coal Bituminous 46 - 86% 1.10 x 104 to 1.50 x 104 BTU /lb coal Anthracite 86 - 98% 1.35 x 104 to 1.56 x 104 BTU /lb coal Sample computation for Lignite: 1 Kg 1.00lb 1.00 x 106 x = 82.6 Kg 5.50х 103 втU 2.20 lbs 1 Kg = 54.76Kg 1.00 lb 1.00 x 106 BTU x %3D 8.30 x 103 BTU ^ 2.20 lbs
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