Low-temperature molar heat capacity and thermodynamic properties of rare earth complex

2015 ◽  
Vol 124 (1) ◽  
pp. 429-435 ◽  
Author(s):  
Lu Pan ◽  
Xiao-Han Gao ◽  
Xue-Chuan Lv ◽  
Zhi-Cheng Tan
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

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.


2003 ◽  
Vol 35 (12) ◽  
pp. 1897-1903 ◽  
Author(s):  
Li-Guo Kong ◽  
Zhi-Cheng Tan ◽  
Jie Xu ◽  
Shuang-He Meng ◽  
Xin-He Bao

2003 ◽  
Vol 397 (1-2) ◽  
pp. 67-73 ◽  
Author(s):  
Beiping Liu ◽  
Zhi-Cheng Tan ◽  
Jilin Lu ◽  
Xiao-Zheng Lan ◽  
Lixian Sun ◽  
...  

2020 ◽  
Vol 518 ◽  
pp. 112627
Author(s):  
Zixiang Cui ◽  
Jiaojiao Chen ◽  
Yongqiang Xue ◽  
Junzhen Gan ◽  
Xinghui Chen ◽  
...  

2005 ◽  
Vol 50 (3) ◽  
pp. 932-935 ◽  
Author(s):  
Xue-Chuan Lv ◽  
Zhi-Cheng Tan ◽  
Quan Shi ◽  
Hong-Tao Zhang ◽  
Li-Xian Sun ◽  
...  

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