A Determination of Vapor Pressure-Temperature Relation of Oxygen Based on Latent Heat Measurements at Normal Boiling Point

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概要

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• Based on the knowledge of the heat of vaporization at normal boiling point alone, a thermodynamic equation has been derived by Van Dijk to represent the relation between the pressure of the saturated vapor of a substance and its thermodynamic temperature (the P-T relation). We have measured the heat of vaporization of oxygen at its normal boiling point, which is the most important quantity to use the above equation, and obtained a new P-T relation of oxygen. The obtained value for the heat of vaporization of oxygen at its normal boiling point is 6822.7 J・mol^<-1>, and P-T relation based on this value suggests that the P-T relation of oxygen adopted in the IPTS-68 may give slightly higher temperature values than those in the thermodynamic temperature unit not exceeding 13 mK.

• 社団法人応用物理学会の論文
• 1976-06-05

著者

• Oishi Jiro

  Department Of Physics College Of Science And Engineering Aoyama Gakuin University

• SUYAMA Yoshizo

  Department of Physics, College of Science and Engineering, Aoyama Gakuin University

• Suyama Yoshizo

  Department Of Physics College Of Science And Engineering Aoyama Gakuin University

関連論文

• A Determination of Vapor Pressure-Temperature Relation of Oxygen Based on Latent Heat Measurements at Normal Boiling Point
• Preparation of the Triple Point of Water from a Practical Point of View

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