Table 1 96. 

 CONDUCTIVITY FOR HEAT. 



199 



The coefficient k is the quantity of heat in small calories which is transmitted per second through 

 a plate one centimetre thick per square centimetre of its surface when the difference of tempera- 

 ture between the two faces of the plate is one degree Centigrade. The coefficient k is found to 

 vary with the absolute temperature of the plate, and is expressed approximately by the equation 

 kt = k„{\ +a/). In the table k^ is the value oi kt, for 0° C.,/ the temperature Centigrade, and a 

 a constant. 



