The isothermal compressibility of mercury at 20 °C and 192 bar has been determined with an accuracy estimated at ±0·4%, which represents a considerable increase in accuracy over previous determinations. The value obtained is within 0·3% of that derived from the velocity of sound by Davis and Gordon, although the accuracy claimed for the latter was only ±0·8%.
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Alan T. J. Hayward (1971) studied this question.
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