Calorimetric measurements of the low-temperature heat capacity, standard molar enthalpy of formation at 298.15 K, and high-temperature molar enthalpy increments relative to 298.15 K of tungsten disulfide (WS2), and the thermodynamic properties to 1500 K

1984 ◽  
Vol 16 (1) ◽  
pp. 45-59 ◽  
Author(s):  
P.A.G. O'Hare ◽  
W.N. Hubbard ◽  
G.K. Johnson ◽  
H.E. Flotow
Keyword(s):  
Heat Capacity ◽  
High Temperature ◽  
Low Temperature ◽  
Thermodynamic Properties ◽  
Enthalpy Of Formation ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy ◽  
Calorimetric Measurements ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity

Low-temperature heat capacity and standard molar enthalpy of formation of the complex Zn(Thr)SO4·H2O (s)

2003 ◽  
Vol 400 (1-2) ◽  
pp. 43-49 ◽  
Author(s):  
You-Ying Di ◽  
Zhi-Cheng Tan ◽  
Guo-Qi Zhang ◽  
San-Ping Chen ◽  
Yi Liu ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Low Temperature ◽  
Enthalpy Of Formation ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity

Thermochemistry of uranium compounds. XVI. Calorimetric determination of the standard molar enthalpy of formation at 298.15 K, low-temperature heat capacity, and high-temperature enthalpy increments of UO2(OH2)•H2O (schoepite)

1988 ◽  
Vol 66 (4) ◽  
pp. 620-625 ◽  
Author(s):  
I.R. Tasker ◽  
P. A. G. O'Hare ◽  
Brett M. lewis ◽  
G. K. Johnson ◽  
E. H. P. Cordfunke
Keyword(s):  
Heat Capacity ◽  
High Temperature ◽  
Low Temperature ◽  
Thermodynamic Properties ◽  
Enthalpy Of Formation ◽  
Molar Heat Capacity ◽  
Temperature Drop ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy ◽  
Enthalpy Increments

Three precise calorimetric methods, viz., low-temperature adiabatic, high-temperature drop, and solution-reaction, have been used to determine as a function of temperature the key chemical thermodynamic properties of a pure sample of schoepite, UO2(OH)2•H2O. The following results have been obtained at the standard reference temperature T = 298.15 K: standard molar enthalpy of formation [Formula: see text] molar heat capacity [Formula: see text] and the standard molar entropy [Formula: see text] The molar enthalpy increments relative to 298.15 K and the molar heat capacity are given by the polynomials: [Formula: see text] and [Formula: see text], where 298.15 K < T < 400 K. The present result for [Formula: see text] at 298.15 K has been combined with three other closely-agreeing values from the literature to give a recommended weighted mean [Formula: see text] from which is calculated the standard Gibbs energy of formation [Formula: see text] at 298.15 K. Complete thermodynamic properties of schoepite are tabulated from 298.15 to 423.15 K.

Low-temperature heat-capacity and standard molar enthalpy of formation of copper l-threonate hydrate Cu(C4H6O5)·0.5H2O(s)

2006 ◽  
Vol 441 (2) ◽  
pp. 132-136 ◽  
Author(s):  
Wei Qing ◽  
San-Ping Chen ◽  
Sheng-Li Gao ◽  
Zhi-Cheng Tan ◽  
You-Ying Di ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Low Temperature ◽  
Enthalpy Of Formation ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity
Sign in / Sign up

Export Citation Format

Share Document