Results 11 to 20 of about 26,718 (332)

Training machine learning models based on the structural formula for the enthalpy of vaporization and sublimation and a thorough analysis of Trouton’s rules

open access: yesJournal of Energetic Materials, 2023
To convert a calculated value of the enthalpy of formation from the gas phase to room temperature, the enthalpy of sublimation and vaporization are needed.
Sabrina Wahler   +2 more
semanticscholar   +1 more source

Determination of Volatility Parameters of Secondary Organic Aerosol Components via Thermal Analysis

open access: yesAtmosphere, 2022
To date, there are limited data on the thermal properties of secondary organic aerosol (SOA) components. In this study, we employed an experimental method to evaluate the physical properties of some atmospherically relevant compounds.
Fawad Ashraf   +5 more
doaj   +1 more source

A theoretical analysis on enthalpy of vaporization: Temperature-dependence and singularity at the critical state [PDF]

open access: yesFluid Phase Equilibria, 2019
Accurate evaluation of enthalpy of vaporization (or latent heat of vaporization) and its variation with temperature is of great interest in practical applications, especially for combustion of liquid fuels. Currently, a theoretically rigorous formulation
Dehai Yu, Zheng Chen
semanticscholar   +1 more source

Correlating Pure Component Properties with MOSCED Solubility Parameters: Enthalpy of Vaporization and Vapor Pressure

open access: yesChemEngineering, 2023
Tools to predict vapor–liquid phase equilibria are indispensable for the conceptualization and design of separation processes. Modified separation of cohesive energy density (MOSCED) is a solubility-parameter-based method parameterized to make accurate ...
Nick H. Wong   +3 more
doaj   +1 more source

An investigation of edge F-index on fuzzy graphs and application in molecular chemistry

open access: yesComplex & Intelligent Systems, 2022
The molecular descriptors are a useful tool in the spectral graph, molecular chemistry and several fields of chemistry and mathematics. The edge F-index is proposed for fuzzy graphs (FGs) here. Bounds of this index are calculated for FGs. The FG has been
Sk Rabiul Islam, Madhumangal Pal
doaj   +1 more source

Isotherms and thermodynamic properties of water adsorption in ‘Cumari-do-Pará’ pepper seeds [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2020
Studies related to water sorption in seeds are essential for the design and optimization of storage systems. The objective of this research was to determine and model the adsorption isotherms and calculate the latent heat of water vaporization ...
Karen C. Rodrigues   +5 more
doaj   +1 more source

Sharp Bounds of First Zagreb Coindex for F-Sum Graphs

open access: yesJournal of Mathematics, 2021
Let G=VE,EG be a connected graph with vertex set VG and edge set EG. For a graph G, the graphs S(G), R(G), Q(G), and T(G) are obtained by applying the four subdivisions related operations S, R, Q, and T, respectively. Further, for two connected graphs G1
Muhammad Javaid   +3 more
doaj   +1 more source

The Possible Coupling of LNG Regasification Process with the TSA Method of Oxygen Separation from Atmospheric Air

open access: yesEntropy, 2021
Liquefied Natural Gas (LNG) must be vaporized before it is used in the combustion process. In most regasification terminals, energy that was previously expended to liquefy natural gas is dissipated in the environment.
Tomasz Banaszkiewicz
doaj   +1 more source

A Compositional Thermal Multiphase Wellbore Model for Use in Non-Isothermal Gas Lifting [PDF]

open access: yes, 2019
In this paper, a new compositional mechanistic wellbore model, including gas lifting parameters, is presented. In the governing equations of this model, new terms for mass transfer between phases and the enthalpy of phase change which are important in ...
Ali Mohsenipour   +43 more
core   +1 more source

Vapor Pressures and Enthalpies of Vaporization for Toxaphene Congeners [PDF]

open access: yesJournal of Chemical & Engineering Data, 2003
Subcooled saturation liquid-phase vapor pressures (PL) were determined for 21 chlorinated bornane and camphene congeners by capillary gas chromatography. Values of PL for congeners with 6−10 chlorine substituents at 25 °C ranged from (0.23 to 7.1) mPa, and enthalpies of vaporization (ΔvapH) ranged from (77.6 to 91.8) kJ·mol-1.
Terry F. Bidleman   +2 more
openaire   +1 more source

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