 | Frédéric Bettex - 1901 - 334 pàgines
...become necessary to fix a thermal unit, or calorie, which, however, is not the same in all countries. In France it is the quantity of heat necessary to raise the temperature of one kilogram of water through one degree Centigrade; in England it is the quantity necessary to raise one... | |
 | Joseph Benjamin Rider - 1901 - 546 pàgines
...it produces in any substance. In the US, the BTU (British Thermal Unit) is the unit of measure and is the quantity of heat necessary to raise the temperature of one commercial pound of water from 62° to 63° Fahr. In France the heat unit is called the Calorie and... | |
 | Fernando Sanford - 1902 - 476 pàgines
...measuring distances. In laboratory practice the thermal unit generally used is called the Gram-calorie. It is the quantity of heat necessary to raise the temperature of one gram of water one degree Centigrade. Within the limits of accuracy of our experiments this quantity... | |
 | Robert Wahl, Max Henius - 1902 - 1288 pàgines
...heat of ice is 0.5; of gaseous steam, 0.62, taking water as the unit. A Heat-unit, or thermal unit, is the quantity of heat necessary to raise the temperature of one pound of water one degree. One thermal unit (th. u.) = 778 foot-pounds (772 according to Joule). STEAM.... | |
 | Albert William Smith - 1902 - 180 pàgines
...units.* Calorific power of combustibles from experimental determinations : * A British thermal unit is the quantity of heat necessary to raise the temperature of one pound of water through one degree Fahrenheit at the temperature of maximum density. Combustible. Calorific... | |
 | Richard Sennett - 1904 - 596 pàgines
...This number, originally fixed by Joule at 772, is now known by later investigation to be 778 — that is, the quantity of heat necessary to raise the temperature of one pound of water at its maximum density, one degree Fahr., can be made to perform work equal to the raising... | |
 | 1907 - 334 pàgines
...39.1°F., the temperature of its maximum density. Calorie. — This is sometimes abbreviated to Cal., and is the quantity of heat necessary to raise the temperature of one kilogram of water from 4°C. to 5°C. Relation Between the L'nits. — Since a kilogram is equivalent... | |
 | Adolphe Ganot - 1905 - 816 pàgines
...weight of a substance, such as water. The unit chosen for comparison, and called the thermal unit, is not everywhere the same. In France it is the quantity...water through one degree Centigrade ; this is called the calorie. In this book we shall adopt, as a thermal unit, the quantity of heat necessary to raise... | |
 | Charles Bedford Thompson - 1907 - 280 pàgines
...men of average education. The measure of heat used in this country is the British thermal unit, which is the quantity of heat necessary to raise the temperature of one pound of water one degree Fahrenheit. This heat unit will be used in this book for the sake of illustration,... | |
 | Alfred Payson Gage - 1907 - 568 pàgines
...measured by the amount of effect it produces. The thermal unit generally adopted is the ralorie, which is the quantity of heat necessary to raise the temperature of one gram of water from 4° to 5° C. Authorities do not agree on the temperature limits for this unit.... | |
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By a unit of heat is meant the quantity of heat necessary to raise the temperature of one kilogramme of water one degree centigrade, or more accurately from 0° to 1°. 
