THE DETERMINATION OF THE ENTHALPY OF FORMATION AND THE ENTHALPY INCREMENT OF CD0.5TE0.5 BY CALVET CALORIMETRY

被引:10
作者
AGARWAL, R [1 ]
VENUGOPAL, V [1 ]
SOOD, DD [1 ]
机构
[1] BHABHA ATOM RES CTR,DIV FUEL CHEM,BOMBAY 400085,INDIA
关键词
D O I
10.1016/0925-8388(93)90477-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The enthalpy of formation of Cd0.5Te0.5(s) has been determined using a Calvet calorimeter at 785 K by direct reaction calorimetry. The heat changes were measured for the additions of Cd(s) or Te(s) from 298 K to a reaction crucible containing the other liquid metal at 785 K. Measurements were also carried out to determine the enthalpy changes due to the direct reaction of the Te(1) and Cd(1) at 785 K. The enthalpies of formation of Cd0.5Te0.5 calculated from the two sets of experiments were in agreement. The H(T)degrees - H298-degrees values of the Cd0.5Te0.5 compound have also been determined in the temperature range 406-426 K by the drop method. Using DELTAH(fm)degrees at 785 K and H(T)degrees - H298-degrees values of Cd0.5Te0.5, DELTAH(fm)degrees at 298 K was determined to be -(50.349+/-0.510) kJ mol-1.
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页码:93 / 98
页数:6
相关论文
共 27 条
[1]   CHEMICAL THERMODYNAMICS OF CS AND TE FISSION-PRODUCT INTERACTIONS IN IRRADIATED LMFBR MIXED-OXIDE FUEL-PINS [J].
ADAMSON, MG ;
AITKEN, EA ;
LINDEMER, TB .
JOURNAL OF NUCLEAR MATERIALS, 1985, 130 (FEB) :375-392
[2]   PARTIAL PRESSURES + GIBBS FREE ENERGY OF FORMATION FOR CONGRUENTLY SUBLIMING CDTE(C) [J].
BREBRICK, RF ;
STRAUSS, AJ .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1964, 25 (12) :1441-&
[3]  
DEMIDENKO AF, 1969, IAN SSSR NEORG MATER, V59, P252
[4]  
DEMIDENKO AF, 1969, IAN SSSR NEORG MATER, V59, P158
[5]   MASS SPECTROMETRIC AND KNUDSEN-CELL VAPORIZATION STUDIES OF GROUP 2B-6B COMPOUNDS [J].
GOLDFINGER, P ;
JEUNEHOMME, M .
TRANSACTIONS OF THE FARADAY SOCIETY, 1963, 59 (492) :2851-&
[6]  
HARTMANN H, 1982, CURRENT TOPICS MATER, V9
[7]  
KORNEEVA IV, 1960, ZH NEORG KHIM+, V5, P241
[8]  
Kubaschewski O., 1979, METALLURGICAL THERMO
[9]   SOLID-VAPOR EQUILIBRIUM OF CDTE [J].
LORENZ, MR .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1962, 23 (OCT) :1449-&
[10]  
MALKOVA AS, 1989, ZH FIZ KHIM+, V63, P41