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Energy Calculations PRACTICE PROBLEM #1:

Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of

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Energy Calculations PRACTICE PROBLEM #1:

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  1. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy.

  2. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. 1. Showing all steps in your calculations, determine the

  3. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in 24 hours.

  4. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in 24 hours. (b) Cubic feet of natural gas consumed by the power plant each hour.

  5. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant.

  6. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. The power company is able to sell electricity at $50 per 500 kW-h. They pay a wholesale price of $5.00 per 1,000 cubic feet of natural gas.

  7. Energy Calculations • PRACTICE PROBLEM #1: • A large, natural gas-fired electrical power facility produces • 15 million kilowatt-hours of electricity each day it operates. • The power plant requires an input of 13,000 BTUs of heat • to produce 1 kilowatt-hour of electricity. One cubic foot of • natural gas supplies 1,000 BTUs of heat energy. • What environmental effect might the production of • electricity through the burning of natural gas pose?

  8. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information?

  9. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas

  10. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each dayit operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas 15 million kW-h per day

  11. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each dayit operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day

  12. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h

  13. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h

  14. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs

  15. Energy Calculations PRACTICE PROBLEM #1: A large, natural gas-fired electrical power facility produces 15 million kilowatt-hours of electricity each day it operates. The power plant requires an input of 13,000 BTUs of heat to produce 1 kilowatt-hour of electricity. One cubic foot of natural gas supplies 1,000 BTUs of heat energy. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs

  16. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in 24 hours.

  17. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in24 hours.

  18. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in24 hours. 24 hours = 1 day

  19. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in24 hours. 24 hours = 1 day 1.5 x 107 kW-h/day x

  20. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in24 hours. 24 hours = 1 day 1.5 x 107 kW-h/day x 1.3 x 104 BTUs/1 kW-h

  21. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (a) BTUs needed to generate the electricity produced by the power plant in24 hours. 24 hours = 1 day 1.5 x 107 kW-h/day x 1.3 x 104 BTUs/1 kW-h = 1.95 x 1011 BTUs/day

  22. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (b) Cubic feet of natural gas consumed by the power plant each hour.

  23. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (b) Cubic feet of natural gas consumed by the power plant each hour. FROM PART (a):

  24. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (b) Cubic feet of natural gas consumed by the power plant each hour. FROM PART (a): 1.95 x 1011 BTUs/day x

  25. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (b) Cubic feet of natural gas consumed by the power plant each hour. 1.95 x 1011 BTUs/day x 1 day/24 hrs x

  26. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (b) Cubic feet of natural gas consumed by the power plant each hour. 1.95 x 1011 BTUs/day x 1 day/24 hrs x 1 ft3/1.0 x 103 BTUs

  27. What’s the important information? natural gas 15 million kW-h per day =1.5 x 107 kW-h/day 13,000 BTUs per 1 kW-h =1.3 x 104 BTUs/1 kW-h 1.0 ft3 of natural gas per 1,000 BTUs =1.0 ft3/1.0 x 103 BTUs 1. Showing all steps in your calculations, determine the (b) Cubic feet of natural gas consumed by the power plant each hour. 1.95 x 1011 BTUs/day x 1 day/24 hrs x 1 ft3/1.0 x 103 BTUs = 8.125 x 106 ft3/hr

  28. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant.

  29. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant.

  30. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant.

  31. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) +

  32. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + O2(g)

  33. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + O2(g) CO2(g) +

  34. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + O2(g) CO2(g) + H2O(g)

  35. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + O2(g) CO2(g) + 2 H2O(g)

  36. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g)

  37. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry:

  38. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry: when gases react and there is no change in pressure and temperature, mole coefficients can be replaced by volumes.

  39. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry: when gases react and there is no change in pressure and temperature, mole coefficients can be replaced by volumes. FROM PART (b):

  40. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry: when gases react and there is no change in pressure and temperature, mole coefficients can be replaced by volumes. FROM PART (b): 8.125 x 106 ft3 CH4/hr x

  41. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry: when gases react and there is no change in pressure and temperature, mole coefficients can be replaced by volumes. 8.125 x 106 ft3 CH4/hr x 24 hr/1 day x

  42. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry: when gases react and there is no change in pressure and temperature, mole coefficients can be replaced by volumes. 8.125 x 106 ft3 CH4/hr x 24 hr/1 day x 1 ft3 CO2/1 ft3 CH4

  43. 1. Showing all steps in your calculations, determine the (c) Cubic feet of carbon dioxide gas released by the power plant each day. Assume that methane combusts with oxygen to produce only carbon dioxide and water vapor and that the pressures and temperatures are kept constant. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) Recall from chemistry: when gases react and there is no change in pressure and temperature, mole coefficients can be replaced by volumes. 8.125 x 106 ft3 CH4/hr x 24 hr/1 day x 1 ft3 CO2/1 ft3 CH4 = 1.95 x 108 ft3 CO2/day

  44. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. The power company is able to sell electricity at $50 per 500 kW-h. They pay a wholesale price of $5.00 per 1,000 cubic feet of natural gas. What’s the important information?

  45. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. The power company is able to sell electricity at $50 per 500 kW-h. They pay a wholesale price of $5.00 per 1,000 cubic feet of natural gas. What’s the important information? Customers pay $50 per 500 kW-h

  46. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. The power company is able to sell electricity at $50 per 500 kW-h. They pay a wholesale price of $5.00 per 1,000 cubic feet of natural gas. What’s the important information? Customers pay $50 per 500 kW-h Power company pays $5.00 per 1,000 cubic feet of natural gas

  47. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. The power company is able to sell electricity at $50 per 500 kW-h. They pay a wholesale price of $5.00 per 1,000 cubic feet of natural gas. What’s the important information? Customers pay $50 per 500 kW-h Power company pays $5.00 per 1,000 cubic feet of natural gas = $5.00/1.0 x 103 ft3 CH4

  48. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. What’s the important information? Customers pay $50 per 500 kW-h Power company pays $5.00 per 1,000 cubic feet of natural gas = $5.00/1.0 x 103 ft3 CH4 How much does the power company make in one year?

  49. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. What’s the important information? Customers pay $50 per 500 kW-h Power company pays $5.00 per 1,000 cubic feet of natural gas = $5.00/1.0 x 103 ft3 CH4 How much does the power company make in one year? 1.5 x 107 kW-h/day x

  50. 1. Showing all steps in your calculations, determine the (d) Gross profit per year for the power company. What’s the important information? Customers pay $50 per 500 kW-h Power company pays $5.00 per 1,000 cubic feet of natural gas = $5.00/1.0 x 103 ft3 CH4 How much does the power company make in one year? 1.5 x 107 kW-h/day x 365 days/year x

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