ABSTRACT

The heat capacity of natural lead carbonate (cerussite, PbCO3) has been measured by means of the low temperature adiabatic calorimetry over the temperature range of (4 to 320) K. Its thermodynamic functions Cp(T), S(T) and H(T) H(0) have been calculated over the whole temperature range from the experimental data on the heat capacity. The standard values of the heat capacity and entropy are equal to C_p;m = 87.07 +- 0.09 J mol-1 K-1, S_m = 125.45 +- 0.20 J mol-1 K-1, respectively. An anomalous deviation of the heat capacity has been registered in the range of (269 to 278) K.

Compounds

#	Formula	Name
1	CO3Pb	lead(II) carbonate

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	290
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	44
POMD	1	Molar enthalpy, kJ/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	44
POMD	1	Molar entropy, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	44

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

The heat capacity and thermodynamic functions of cerussite

Bissengaliyeva, M. R., Gogol, D. B., Taimassova, S. T.[Sh.T.], Bekturganov, N. S.[Nuraly S.]

ABSTRACT