ISOTHERMAL COMPRESSIBILITY OF LIQUID WATER AT 1 ATM
ISOTHERMAL COMPRESSIBILITY OF LIQUID WATER AT 1 ATM
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DOI：
10.1021/je60044a003
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发表时间：
1970-01-01
期刊：
影响因子：
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通讯作者：
KELL, GS
中科院分区：
文献类型：
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作者：
KELL, GS
最近对蒸馏普通水中声速的测量给出了等温压缩性，标准误差为0.002 × 10 - 6 bar-1，是直接测量的十分之一。至少在低温下，由声速测定的等温压缩率比直接测定的系统误差要小。内插方程表示声速u为1/u2以及等熵和等温压缩率的温度依赖性。声学和直接测量共同给出了适用于0 - 150 ℃的等温压缩性方程。并被认为是等温压缩性的最佳估计;给出了110 ℃的表。最大密度温度随压力的变化为-0.0200 ±0.0003度。巴尔湖。
Recent measurements of the velocity of sound in distilled ordinary water give the isothermal compressibility with a standard error of 0.002 X 1 O'6 bar" 1, one tenth that of direct determinations. At least at low temperatures, isothermalcompressi-bilities fromthe velocity of sound should have fewer systematic errors than direct determinations. Interpolating equations represent the temperature dependence of the velocity of sound, u, of 1/u2, and of the isentropic and isothermal compressibilities. Acoustic and direct measurements together give an equation for the isothermal compressibility valid from 0 to 150 C. and to be considered a best estimate of the isothermal compressibility; a table is given to 110 C. The change of temperature of maximum density with pressure is—0.0200±0.0003 deg. bar" L.