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The Heat Capacity of Gaseous Butadiene-1,3

J. G. Aston, Gustave W. Moessen, Howard C. Hardy, G. J. Szasz

Abstract

The heat capacity of gaseous butadiene-1,3 at 300°K and at 363°K has been determined by the measurement of the velocity of high frequency sound in the gas over the pressure range from one-third to one atmos. The heat capacity of the gas at zero pressure, evaluated by extrapolation to zero pressure, is in essential agreement with the value calculated from experimental state data. The experimental results are compared with values calculated from spectroscopic and molecular data and a marked disagreement is observed.

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Key concepts: Heat capacity, Extrapolation, Heat capacity ratio, Thermodynamics, Zero (linguistics), Range (aeronautics), Chemistry, Materials science