TABLE 259 (continued}. 



PROPERTIES OF SATURATED STEAM. 



235 



Metric and Common Units. 



If a is the reciprocal of the Mechanical Equivalent of Heat, p the pressure, s and a the specific volumes of the 

 liquid and the saturated vapor, s .<r, the change of volume, then the heat equivalent of the external work is Apu =: 

 Ap(s <r). Heat equivalent of internal work, p r Apu. For experimental sp. vols. see Knoblauch l.inde and 

 Klebe, Mitt, iiber Forschungarbeiten, 21, p. 33, 1905. Entropy = S dQ/T, where dQ = amount of heat added at ab- 

 solute temperature T. For pressures of saturated steam see Holborn and Henning, Ann. der Phys. 26 p. 831 1008' 

 for temperatures above 205 C. corrected from Regnault. 



SMITHSONIAN TABLES. 



