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Question

I was wondering if there is a table that shows the volume vs temperature for Mercury (Hg)?
Asked by: Zvi Szwarc

Answer

Such a table is in the CRC Handbook of Chemistry and Physics, CRC Press, Boca Raton, FL. The following is an excerpt:

°Cml/gr
-100.0734205
00.073554
100.0736877
200.0738215
300.0739552
400.0740891
900.0747594
1400.0754334
1900.0761128
2400.0767996
2900.0774958
3400.0782033
The following equation gives the volume accurate to about 1 part in 70,000, equivalent to 0.1 °C:

V(ml./gr.) = 0.073554 + 0.000013245 * T + 1.22823*10-9 * T2

The volume (or density) versus temperature is something many of us use daily since it is the basis of mercury thermometry. You will note that the volume equation is nearly linear, as is usually assumed in Hg thermometer calibration.
Answered by: Scott Wilber, President, ComScire - Quantum World Corporation


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