Compressibility of Liquids

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Compressibility is the fractional change in volume per unit increase in pressure. For each atmosphere increase in pressure, the volume of water would decrease 46.4 parts per million. The compressibility k is the reciprocal of the Bulk modulus, B. (Data from Sears,Zemansky, Young and Freedman, University Physics, 10th Ed., Section 11-6. )

LiquidCompressibility, k
Pa-1 x 10-11Atm-1 x 10-6
Carbon disulfide 93 94
Ethyl alcohol 110 111
Glycerine 21 21
Mercury 3.7 3.8
Water 45.8 46.4