...the composition of the hydrocarbons the heating values were calculated. The British Thermal unit is the amount of heat required to raise one pound of water one degree Fahrenheit, so for Boston gas one cubic foot would raise 689.7 pounds water from 60 to 61 degrees. I have been...

...dynamic value—838 foot-pounds, subsequently corrected to 772 foot-pounds—as that of the quantity of Heat required to raise one pound of water one degree, Fahrenheit, of temperature, supposing the original temperature of the water to be between 55 deg. and 60 deg.,...

...one foot hi;/h, at the surface of the earth. Now he proved by his experiment — That the quantity of heat required to raise one pound of water one degree, Fahrenheit, was equivalent, if converted into mechanical force, to raise one pound in weight seven hundred and...

...absolute or natural unit of heat, relative values alone can be obtained and the unit assumed may be the amount of heat required to raise one pound of water one degree in temperature. The value of the elements is expressed in terms of this unit, and the value of the...

...absolute or natural unit of heat, relative values alone can be obtained and the unit assumed may be the amount of heat required to raise one pound of water one degree in temperature. The value of the elements is expressed in terms of this unit, and the value of the...

...absolute or natural unit of heat, relative values alone can be obtained and the nnit assumed may be the amount of heat required to raise one pound of water one degree in temperature. The value of the elements is expressed in terras of this unit, and the value of the...

...number be divided by the number of foot pounds which are equal in value to one unit of heat, that is to the amount of heat required to raise one pound of water one degree Fahr. We have seen that that number of foot pounds is 772 (Joule's mechanical equivalent of heat)....

...or so-called unit of heat. The unit I have adopted and used throughout those calculations is that of the amount of heat required to raise one pound of water one degree Fahr. This unit is called the specific heat of the body; thus water being the unit is 1, cast-iron...

...colder surrounding air. The loss is estimated in units of heat, one unit being the amount necessary to raise one pound of water one degree Fahrenheit in temperature. In ascertaining the loss by radiation it must be observed that the radiating power of bodies depends on...

...as meaning the French heat unit, or calorie. In order to distinguish these tiro heat nnlts from that amount of heat required to raise one pound of water one degree Ctntiyradt, we may call this latter amount a " therm," or " thermal unit." EXAMPLE. Required to raise...