{"title":"THE VELOCITY OF SOUND IN HELIUM AT TEMPERATURES −78 °C. TO 200 °C. AND PRESSURES UP TO 70 ATMOSPHERES","authors":"W. Schneider, G. Thiessen","doi":"10.1139/CJR50A-041","DOIUrl":null,"url":null,"abstract":"The velocity of sound in pure helium gas has been measured as a function of pressure at −78°, 0°, 50°, 100°, and 200 °C., using an ultrasonic interferometer of the double crystal type. From the sound velocity data second viral coefficients were obtained, and the ratio of specific heats was derived as a function of pressure.","PeriodicalId":9392,"journal":{"name":"Canadian journal of research","volume":"37 1","pages":"509-519"},"PeriodicalIF":0.0000,"publicationDate":"1950-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian journal of research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1139/CJR50A-041","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
The velocity of sound in pure helium gas has been measured as a function of pressure at −78°, 0°, 50°, 100°, and 200 °C., using an ultrasonic interferometer of the double crystal type. From the sound velocity data second viral coefficients were obtained, and the ratio of specific heats was derived as a function of pressure.
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