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Speed of sound measurements in gaseous binary mixtures of difluoroethane (HFC152a)+ difluoromethane (HCFC22) with a spherical resonator

何茂刚Mao-gang He* Zhi-gang Liu

Fluid Phase Equilibria 198(2002)185-193,-0001,():

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摘要/描述

Eighty-four speed of sound values in gaseous mixtures of the refrigerants difluoroethane (CH3CHF2, HFC152a)+ difluoromethane (CHClF2, HCFC22) have been measured for temperatures from 293 to 323K, pressure from 200 to 405kPa, and mass fractions of HCFC22 of 13.8 and 25.5% with a spherical acoustic resonator. The experimental uncertainties in the temperature, pressure and speed of sound in gas are estimated to be less than

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