| 库水硼镁石2MgO.3B2O3.15H2O的65-310K间的比热测定及其热力学性质的计算 |
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| 引用本文： | 黄树丰,张强,李亚荣,陈佩珩.库水硼镁石2MgO.3B2O3.15H2O的65-310K间的比热测定及其热力学性质的计算[J].化学学报,1988,46(10):967-971. |
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| 作者姓名： | 黄树丰 张强 李亚荣 陈佩珩 |
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| 作者单位： | 西北大学化学系 |
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| 摘 要： | 用真空绝热量热计测定了库水硼镁石2MgO.3B2O3.15H2O在65-310K间的比热.根据Debye-Einsein函数组合式, 计算了0-65K间的比热, 其误差为0.4%.在65-310K范围内, 每隔5K, 计算了熵、焓和自由能函数.
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| 关 键 词： | 热力学性质 硼镁石 氧化镁 水合物 熵 焓 比热 氧化硼 |
The specific heat measurements of kurnakovite (2MgO.3B2O3.15H2O) from 65 to 310K and calculation of its thermodynamic properties |
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| HUANG SHUFENG,ZHANG QIANG,LI YARONG,CHEN PEIHENG.The specific heat measurements of kurnakovite (2MgO.3B2O3.15H2O) from 65 to 310K and calculation of its thermodynamic properties[J].Acta Chimica Sinica,1988,46(10):967-971. |
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| Authors: | HUANG SHUFENG ZHANG QIANG LI YARONG CHEN PEIHENG |
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| Abstract: | The sp. heat of kurnakovite (2MgO.3B2O3.15H2O) was measured at 65-310 K by using the adiabatic calorimeter. The math. relation between the sp. heats and temps. is given. The sp. heat of kurnakovite at 0-65 K was calculated by Debye-Einstein function. The entropy (S), enthalpy (H), and Gibb's free energy (G) were calculated and are tabulated for intervals of 5 K at 65-310 K. At 299.15 K, S = 723.4 ?4.8 J/K.mol, H = 118.8 ?0.2 kJ/K.mol, G = 327 ?5.4 J/K.mol. |
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| Keywords: | THERMODYNAMIC PROPERTIES CAMSELLITE MAGNESIUM OXIDE HYDRATE ENTROPY ENTHALPY SPECIFIC HEAT BORON OXIDE |
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