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我在算2CeO2=Ce2O3+O2在2300k下的吸热量,CeO2我建立了原子为ce2o4的晶胞
CeO2的焓值如下
STANDARD THERMODYNAMIC QUANTITIES
computed from 1200.00 to 2300.00 in steps of 550.00
T Entropy Heat_Capacity Enthalpy Free_Energy
(K) S (cal/mol.K) Cv H (kcal/mol) G
(ZPVE is included)
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1 1200.00 64.989 29.350 36.326 -41.660
2 1750.00 76.113 29.590 52.547 -80.651
3 2300.00 84.213 29.681 68.850 -124.841
Ce2O3我建立了原子为ce2o3的晶胞焓值如下
STANDARD THERMODYNAMIC QUANTITIES
computed from 1200.00 to 2300.00 in steps of 550.00
T Entropy Heat_Capacity Enthalpy Free_Energy
(K) S (cal/mol.K) Cv H (kcal/mol) G
(ZPVE is included)
________________________________________________________________
1 1200.00 61.233 23.707 28.784 -44.696
2 1750.00 70.193 23.780 41.847 -80.991
3 2300.00 76.696 23.808 54.934 -121.467
o2焓值如下
STANDARD THERMODYNAMIC QUANTITIES
computed from 1200.00 to 2300.00 in steps of 550.00
T Entropy Heat_Capacity Enthalpy Free_Energy
(K) S (cal/mol.K) Cv H (kcal/mol) G
(ZPVE is included)
________________________________________________________________
1 1200.00 11.938 5.446 7.846 -6.479
2 1750.00 14.044 5.697 10.922 -13.656
3 2300.00 15.617 5.803 14.088 -21.831
这样用焓值相减得出的吸热量几乎为0,是我的做法有问题吗
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