论文部分内容阅读
用新型的具恒温环境的反应热量计 ,以 2 mol/L HCl为量热溶剂 ,分别测定了 Dy Cl3·6H2 O (s) +3Gly(s) (Gly代表甘氨酸 )和配合物 Dy(Gly) 3Cl3· 3H2 O(s)在 2 mol/L HCl溶液中的溶解焓变。根据盖斯定律设计了一个热化学循环 ,计算得到六水氯化镝与甘氨酸配位反应的反应焓Δr Hθm(2 98.2 K) =- 2 6.2 89k J/mol,并估算出配合物 Dy(Gly) 3Cl3· 3H2 O的标准生成焓 Δr Hθm(2 98.2 K) =- 3650 .5k J/mol。
With the new reaction calorimeter with constant temperature, the molar ratio of Dy Cl3 · 6H2 O (s) + 3Gly (s) (Gly stands for glycine) and the complex Dy (Gly) Dissolution enthalpy of 3Cl3 · 3H2O (s) in 2 mol / L HCl solution. According to Gass’s law, a thermochemical cycle was designed and the enthalpy of reaction, Δr Hθm (2 98.2 K) = -2 6.2 89k J / mol, was calculated. The complex Dy (Gly ) The standard enthalpy of formation of 3Cl3 · 3H2 O Δr Hθm (2 98.2 K) = -3,650. 5k J / mol.