Heat transfer in solid halogenated methanes: trifluoromethane

Abstract

The isochoric thermal conductivity of solid trifluoromethane is investigated for three samples of different densities in the interval from 75K to the onset of melting. The isochoric thermal conductivity first decreases with increasing temperature, passes through a minimum at T∼100K, and then starts to increase slowly. The results obtained are compared with the thermal conductivities of other freons of the methane series. The correlation between the temperature dependence of isochoric thermal conductivity and the character of the rotational molecular motion is discussed.