A modified dual-slope method for heat capacity measurements of condensable gases

摘要

A high resolution non-adiabatic method for measuring the heat capacity($C_v$) of bulk samples of condensable gases in the range 7.5-70 K isdescribed. In this method $C_v$ is evaluated by directly comparing the heatingand cooling rates of the sample temperature for two algebraically independentheat pulse sequences without explicit use of the thermal conductance betweensample and thermal bath. A fully automated calorimeter for rapid measurement of$C_v$ of molecular solids utilizing this technique is presented.