 | Albert Philson Brubaker - 1912 - 764 σελίδες
...absorbed and measured. (See chapter on Animal Heat.) The unit of heat measurement is the Calorie, which*is denned as the amount of heat necessary to raise the temperature of one kilogram of water i° C. If therefore the volume of the water employed in the experiment expressed... | |
 | Christian Larsen, William M. White - 1913 - 348 σελίδες
...ENERGY IN ONE POUND OP THE WATER-FREE EDIBLE PORTION OP SEVERAL FOOD MATERIALS. 1 1 One calorie is the amount of heat necessary to raise the temperature of one pound of water 4° F. or 1 kilogram of water l° C. The cheapest food is that which furnishes the largest... | |
 | Edward Marvin Shealy - 1914 - 286 σελίδες
...63° F. In defining the unit of heat it is necessary to specify the temperature of the water because the amount of heat necessary to raise the temperature of one pound of water through one degree varies slightly at different temperatures. This variation is so slight,... | |
 | William Macgregor Wallace - 1914 - 202 σελίδες
...— Extension =120 X 140 x 0-0000061 = 0-1025". HEAT. The British thermal unit of heat (B.Th.U.) is the amount of heat necessary to raise the temperature of one pound of water 1° F. (at 39° F.). To obtain the number of units of heat necessary to heat a body multiply... | |
 | Edward Marvin Shealy - 1914 - 282 σελίδες
...63° F. In defining the unit of heat it is necessary to specify the temperature of the water because the amount of heat necessary to raise the temperature of one pound of water through one degree varies slightly at different temperatures. This variation is so slight,... | |
 | 1908 - 748 σελίδες
...square foot, it may be assumed, will give off about 250 heat units in one hour — a heat unit being the amount of heat necessary to raise the temperature of one pound of water, 1 degree Fahrenheit. A pound of coal may safely be counted on to give off to the water in... | |
 | Willard Nelson Clute - 1917 - 328 σελίδες
...it, we need a new standard of comparison. Such a standard is found in the calorie, which is defined as the amount of heat necessary to raise the temperature of one gram of water one degree Centigrade. Since all substances give off as much heat in cooling as they... | |
 | 1919 - 1104 σελίδες
...British thermal unit (abbreviated BTU) is the standard unit of heat in this country and represents the amount of heat necessary to raise the temperature of one pound of water one deg. F., the water being at a temperature of 32 deg. ; it also represents the amount of... | |
 | 1919 - 882 σελίδες
...The standard used in measuring fuel values is called the British thermal unit, written BTU, and is the amount of heat necessary to raise the temperature of one pound of pure water 1° F. at or near 39° F., which is the temperature of the maximum density of water.... | |
 | 1919 - 870 σελίδες
...The standard used in measuring fuel values is called the British thermal unit, written BTU, and is the amount of heat necessary to raise the temperature of one pound of pure water 1° F. at or near 39° F., which is the temperature of the maximum density of water.... | |
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In defining the unit of heat it is necessary to specify the temperature of the water because the amount of heat necessary to raise the temperature of one pound of water through one degree varies slightly at different temperatures. 
