| Budget Amount *help |
¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2017: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
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| Outline of Final Research Achievements |
For the aim of the study on the intermolecular potential energy of a polar molecule, a new multi-spectrometer with a cylindrical acoustic-microwave cavity resonator was developed in this study. Using the developed multi-spectrometer, speed-of-sound and dielectric relative permittivity were simultaneously and accurately measured for a polar molecule gas in wide ranges of temperature and pressure. The electrical polarity of the polar molecule was evaluated by using the measured data, and the virial coefficients were calculated on the basis of Stockmayer potential model in combination with the corresponding state principle. Density was successfully derived from the present virial coefficients in wide ranges of temperature and pressure. The developed multi-spectrometer with the proposed data analysis method enables a precise multi-property evaluation for polar molecules.
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