On the Precise Determination of Thermal Capacities with Particular Reference to that of Molybdenum

Details On the Precise Determination of Thermal Capacities with Particular Reference to that of Molybdenum On the Precise Determination of Thermal Capacities with Particular Reference to that of Molybdenum

Aug 1928

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1928phrv...32..298s&link_type=abstract

Physical Review, vol. 32, Issue 2, pp. 298-301

Physics

3

Scientific paper

It was found that a Bunsen ice calorimeter modified by the addition of a silvered vacuum jacket was capable of yielding precise values of the total heats of substances. The falling body was contained in a metal capsule to eliminate errors due to radiation and convection during fall. Thermal contact was established in the calorimeter by a copper cup, containing water or mercury, and surrounded by water. The probable error of a single observation of the motion of the mercury thread caused by a hot body was about one part in one thousand. By this method the specific heat of molybdenum was found to be cp=.05973+.00001619t mean cal./gm °C between the temperatures of 0°C and 444.5°C.

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