引用本文:
阎海科, 顾建国, 胡日恒. 升华热量热计的建立和有机氯化物的蒸发热和升华热的测定[J]. 物理化学学报,
1985, 1(06): 543-546.
doi:
10.3866/PKU.WHXB19850607
Citation: Yan Haike, Gu Jian u, Hu Rihen. SUBLIMATION CALORIMETER AND THE MEASUREMENT OF ENTHALPIES OF VAPORIZATION AND SUBLIMATION OF TRICHLOROBENZENES[J]. Acta Physico-Chimica Sinica, 1985, 1(06): 543-546. doi: 10.3866/PKU.WHXB19850607
Citation: Yan Haike, Gu Jian u, Hu Rihen. SUBLIMATION CALORIMETER AND THE MEASUREMENT OF ENTHALPIES OF VAPORIZATION AND SUBLIMATION OF TRICHLOROBENZENES[J]. Acta Physico-Chimica Sinica, 1985, 1(06): 543-546. doi: 10.3866/PKU.WHXB19850607
升华热量热计的建立和有机氯化物的蒸发热和升华热的测定
摘要:
本文参照Wads设计的蒸发热量热计建立一升华热量热计。利用此升华热量热计和LKB8700蒸发热量热计, 测得如下化合物在298.15 K 时的蒸发焓和升华焓为:
化合物 升华焓(kJ mol~(-1)) 蒸发焓(kJmol~(-1))
水 43.72±0.18
正癸烷 51.21±0.25
萘 73.26±0.92
1,2,3-三氯苯 75.14±0.75
1,2,4-三氯苯 55.06±0.50
1,3,5-三氯苯 72.68±0.50
化合物 升华焓(kJ mol~(-1)) 蒸发焓(kJmol~(-1))
水 43.72±0.18
正癸烷 51.21±0.25
萘 73.26±0.92
1,2,3-三氯苯 75.14±0.75
1,2,4-三氯苯 55.06±0.50
1,3,5-三氯苯 72.68±0.50
English
SUBLIMATION CALORIMETER AND THE MEASUREMENT OF ENTHALPIES OF VAPORIZATION AND SUBLIMATION OF TRICHLOROBENZENES
Abstract:
A sublimation calorimeter has been constructed in our laboratory for solid compounds in pressure range≥0.1 mmHg at 298.15 K. Using this calorimeter and LKB 8700 vaporization calorimeter, the enthalpies of vaporization, ΔH, or the enthalpies of sublimation, ΔH_(sub), of trichorohenzens were measured to be;
Compound ΔH(kJmol)~(-1) ΔH_(sub)(kJmol~(-1))
Water 43.72±0.18
n-Decane 51.21±0.25
Naphthalene 73.26±0.92
1,2,3-Trichlorobenzene 75.14±0.75
1,2,4-Trichlorobenzene 55.06±0.50
1,3,5-Trichlorobenzene 72.68±0.50
Compound ΔH(kJmol)~(-1) ΔH_(sub)(kJmol~(-1))
Water 43.72±0.18
n-Decane 51.21±0.25
Naphthalene 73.26±0.92
1,2,3-Trichlorobenzene 75.14±0.75
1,2,4-Trichlorobenzene 55.06±0.50
1,3,5-Trichlorobenzene 72.68±0.50
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