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Citation: Shao Shuang, Yu Qing-Sen, Fang Wen-Jun, Lin Rui-Sen. Measurement and Study on the Vapor Heat Capacities of Carboxylic Acids[J]. Acta Physico-Chimica Sinica, ;1996, 12(02): 169-172. doi: 10.3866/PKU.WHXB19960216 shu

Measurement and Study on the Vapor Heat Capacities of Carboxylic Acids

1.
Department of Chemistry,Zhejiang Educational College,Hangzhou 310012

Received Date: 25 April 1995
Available Online: 15 February 1996

The vapor heat capacities of acetic acid, propionic acid, n-butyric acid at various temperatures under atmospheric pressure were measured with a multicomponent vapor flow calorimeter. The results show that the vapor heat capacities of carboxylic acids are much larger than those of the ideal gases at the same temperature and that the vapor heat capacities decrease with increasing temperature. The effect of association in the vapor phase on the vapor heat capacity was studied.
- Carboxylic acid,
- Calorimetry,
- Vapor heat capacity,
- Association
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