The thermophysical and thermochemical properties of RuO2 from 0 TO 1000 K

The heat capacity from 5 to 350 K of RuO2 has been measured by adiabatic calorimetry. For the thermochemical properties at room temperature Cop (298.15 K) = (56.42 +/- 0.08) J [middle dot] mol-1 [middle dot] K-1 and So (298.15 K) = (46.15 +/- 0.05) J [middle dot] mol-1 [middle dot] K-1 have been derived. Enthalpy increments relative to 298.15 K have been measured by drop calorimetry from 410 to 757 K: {;H[deg](T) - H[deg](298.15 K)}/J [middle dot] mol-1 = 53.6440(T/K) + 20.19049 [middle dot] 10-3(T/K)2 + 8.23298 [middle dot] 105(T/K)-1 - 205501.1. The thermodynamic functions, including the formation properties [Delta]fHo(T) and [Delta]fGo(T), have been derived for temperatures up to 1000 K.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/28192/1/0000644.pd