Lowhyphen;Temperature Specific Heat of Finely Divided Sodium Chloride

摘要

The specific heats of two samples of finely divided particles of sodium chloride (specific surfaces 41.8 and 78.3 m2/g) have been measured from 4deg; to 20deg;K. The excess specific heat is found to be proportional to the specific surfaceSand toT2with a constant of proportionality equal to 0.64times;10minus;6calmiddot;g degminus;3middot;mminus;2middot;moleminus;1. This result lies within the range of various theoretical predictions of the effect.