The standard enthalpies of formation of PbMoO4 (s) and Pb2MoO5 (s), at 298.15 K were determined by solution calorimetry and are found to be (-1059.53 +- 1.52) kJ mol-1 and (-1274.66 +- 1.81) kJ mol-1, respectively. The heat capacities of PbMoO4(s) and Pb2MoO5(s) were measured using differential scanning calorimetry (DSC). The measured heat capacities as a function of temperature are expressed as: less than PbMoO4greater than (J K-1 mol-1) +- 2.1 = 127.31 + 30.47 * 10-3 T - 1.79 * 106 T-2 (T : 313-798 K) less than Pb2MoO5greater than (J K-1 mol-1) +- 3.0 = 169.20 + 66.69 * 10-3 T - 1.99 * 106 T- 2 (T: 308-798 K)
Compounds
#
Formula
Name
1
Pb
lead
2
Mo
molybdenum
3
O2
oxygen
4
MoO4Pb
lead(II) molybdenum(VI) oxide
5
MoO5Pb2
lead molybdenum oxide (Pb2MoO5)
6
MoO3
molybdenum oxide (MoO3)
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
4
Molar heat capacity at constant pressure, J/K/mol ; Crystal
Temperature, K; Crystal
Pressure, kPa; Crystal
Crystal
Small sample (50 mg) DSC
11
POMD
5
Molar heat capacity at constant pressure, J/K/mol ; Crystal
Temperature, K; Crystal
Pressure, kPa; Crystal
Crystal
Small sample (50 mg) DSC
11
POMD
6
Molar heat capacity at constant pressure, J/K/mol ; Crystal