Wauchope, Joseph Alliene, 1873- · Chicago, Scott, Foresman and Company · leaf 51
e having a com-bined efficiency of 52 per cent. The heat of combustion of coai may be found byburning it in a suitably constructed water-jacket.For average coal it is 15,000 B. T. U. per pound. Ifthe furnace in your house burns 100 pounds of coala day how many B. T. U. are liberated in the house… … Directions.— Put into the teakettle 4 pounds ofwater, noting the temperature of the water. Heat 50 Laboratory Manual in Physics this over the same gas burner used in Experiment No.24 until 1 cubic foot of gas is consumed. Again takethe temperature of the water. Results.—Calculate the number of B.…
Physics
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