Behavior of Isobaric Heat Capacity of Pentafluoroethane in the Gas Phase

2018 ◽  
Vol 63 (10) ◽  
pp. 3727-3732
Author(s):  
Atsushi Matsuguchi ◽  
Noboru Kagawa ◽  
Koichi Watanabe
Keyword(s):  
Heat Capacity ◽  
Gas Phase ◽  
Isobaric Heat Capacity

Behavior of isobaric heat capacity of R32 in the gas phase

2013 ◽  
Vol 36 (8) ◽  
pp. 2216-2222 ◽  
Author(s):  
Noboru Kagawa ◽  
Atsushi Matsuguchi ◽  
Kenichi Yamaya ◽  
Koichi Watanabe
Keyword(s):  
Heat Capacity ◽  
Gas Phase ◽  
Isobaric Heat Capacity

scholarly journals Unknown Knowns: Case Studies in Uncertainties in the Computation of Thermochemical Parameters

2020 ◽  
Author(s):  
John Simmie
Keyword(s):  
Heat Capacity ◽  
Gas Phase ◽  
Basis Set ◽  
Statistical Thermodynamic ◽  
Vibrational Modes ◽  
Heavy Atoms ◽  
New Methods ◽  
Formation Enthalpies ◽  
Thermochemical Parameters

<div>Both the computation of, and the uncertainties associated, with gas-phase molar formation enthalpies are now quite well established for systems comprised of tens of ‘heavy’ atoms chosen from the commonest elements. The same cannot be said for derived thermochemical quantities such as entropy, heat capacity and an enthalpy function. Whilst the application of well known statistical thermodynamic relations is mostly understood, the determination of the uncertainty with which such values can be obtained has been little studied — apart, that is, for a general protocol devised by Goldsmith et al. [J. Phys. Chem. A, 2012, 116, 9033–9057]. Specific examples from that work are explored here and it is shown that their estimates are overly pessimistic. It is also evident that for some species the calculated thermochemical parameters show very little variation with either the level of theory, or basis set, or treatment of vibrational modes — this renders the inclusion of such species in databases designed to validate new methods of limited value.<br></div>

Measurements of isobaric heat capacity of R143a and R227ea at liquid phase by quasi-steady scanning

2020 ◽  
Vol 683 ◽  
pp. 178464
Author(s):  
Yi-jian He ◽  
Lin-feng He ◽  
Shu-peng Zheng ◽  
Guang-ming Chen
Keyword(s):  
Heat Capacity ◽  
Liquid Phase ◽  
Isobaric Heat Capacity
Sign in / Sign up

Export Citation Format

Share Document