Thermal conductivity and heat capacity of cyclopentane in the range 100–300 K and up to 2·1 GPa

• The thermal conductivity, λ, and the specific heat capacity per unit volume, ρCp, of cyclopentane were determined in the range 100–300 K and up to 2.1 GPa. The transient hot-wire technique was used, and the experiments were carried out in a piston-cylinder apparatus. The λ values for the liquid and the two plastic crystalline phases are quite similar, while there is a strong increase corresponding to the plastic → normal crystal transition. In the normal crystal phase a T-1 dependence is observed, in contrast to the small variations of λ with temperature in the other phases. The pressure dependence of λ for the two plastic crystal phases shows a behaviour similar to that of the compressed liquid. Approximate ρCp data are reported. An extended phase diagram for cyclopentane is given.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Thermal conductivity

high pressure

heat capacity

specific heat

cyclopentane

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)