3. One pound (lb) of bituminous coal contains 12,000 BTUs of energy. A BTU is
a British Thermal Unit, or the amount of heat required to raise the temperature of
one pound of water (one pint) by one degree Fahrenheit. Suppose a coal-fired
power plant needs 3,400 BTU's of heat to produce one kilowatt-hour of
electricity. This plant has a 1 Megawatt output.
Showing all steps, calculate the following:
A. How much coal is required to produce one kilowatt-hour of electricity?
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B. How much coal must be burned to keep the plant at full output for 24 hours?
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C. Assuming the coal is 2% sulfur by mass, how many pounds of sulfur would be
released in a 24-hour period?
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