CONTRIBUTIONS FROM THE JEFFERSON PHYSICAL 

 LABORATORY, HARVARD UNIVERSITY. 



TIIKR.MODYXAMIC PKOPKRTIES OF LIQUID WATER TO 



80° Ax\D 12000 KGM. 



By V. \\. Bridgman. 

 Received June 26, 1912. 



Table of Contents. 



Page. 



Introduction 310 



Method 312 



Previous Use of the Method 312 



Description of the Apparatus 314 



Correction for the Distortion of the Vessel 316 



Experimental Procedure 319 



In Determining Compressibility 319 



Calibration of Manganin Coil 320 



Formulas 325 



In Determining Dilatation 326 



The Data 328 



Compressibility at Low Pressures 328 



Dilatation at Low Pressures 330 



Compressibility at High Pressures 331 



Dilatation at High Pressures 334 



Discussion of the Results 336 



Table of Volumes 338 



Method of Construction 336 



Various Thermodynamic Quantites 337 



Compressibility, ( ^ I 340 



Dilatation, l^\ 344 



Work of Compression, W = — f]t f ^ j dp 346 



Heat of Compression, Q = ~ "•■ /7 - j dp 347 



Change of Internal Energy, ^E = ^Y + Q 348 



Pressure Coefficient, I ^ ) 349 



Specific Heat at Constant Pressure, Cp 351 



Specific Heat at Constant Volume, Cv 352 



Thermal EfTect of Compression, ( ^— | 354 



Adiabatic Compressibility, ( 3- ) 355 



Volume of Kerosene as a Function of Temperature and Pressure . . 356 



Compressibility and Dilatation of Ice VI 359 



