Results 11 to 20 of about 22,691 (291)
Revisiting the Clausius/Clapeyron Equation and the Cause of Linearity
Thermo, 2023 In general, for an organic compound a plot of the log vapor pressure versus inverse temperature is linear over a wide temperature range. This however can lead to a point of confusion in an undergraduate thermodynamics course.
Jason E. Thompson, Andrew S. Paluch
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Determination of Volatility Parameters of Secondary Organic Aerosol Components via Thermal Analysis
Atmosphere, 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
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ChemEngineering, 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
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An investigation of edge F-index on fuzzy graphs and application in molecular chemistry
Complex & 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
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Isotherms and thermodynamic properties of water adsorption in ‘Cumari-do-Pará’ pepper seeds [PDF]
Revista 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
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Vapor Pressures and Enthalpies of Vaporization for Toxaphene Congeners [PDF]
Journal 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
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Sharp Bounds of First Zagreb Coindex for F-Sum Graphs
Journal 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
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Entropy, 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
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A Compositional Thermal Multiphase Wellbore Model for Use in Non-Isothermal Gas Lifting [PDF]
, 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
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A Modified Alpha Function for Peng-Robinson Cubic Equation of State
Chemical Engineering Transactions, 2020 A piecewise alpha function was proposed for the Peng-Robinson equation of state (PR EoS) to predict the thermodynamic properties of pure compounds. The proposed alpha function and its derivations satisfied the requirement of consistency test.
Wenying Zhao +4 more
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