Results 11 to 20 of about 3,683 (204)

Isotherms and isosteric heat of sorption of two varieties of Peruvian quinoa [PDF]

open access: yesScientia Agropecuaria, 2016
The isosteric heats of sorption of two varieties of quinoa (Chenopodium quinoaWilld.) grain were determined by the static gravimetric method at four temperatures (40, 50, 60 and 70 °C) andin relative humidity environments provided by ...
Augusto Pumacahua-Ramos   +4 more
doaj   +13 more sources

Isosteric heat of adsorption for water adsorbed on ThO2 [PDF]

open access: yesCHIMIA, 1972
The isosteric heat of adsorption for water on ThO2 was measured as a function of the surface coverage. The ΔHst-values referring to the formation of the second and third monolayer are smaller than the heat of liquefaction of pure water.
Tsvia Ron, P. Schindler
doaj   +3 more sources

Determination of desorption isotherms, latent heat and isosteric heat of pequi diaspore [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2016
The objective was to determine water sorption isotherms of diaspores of pequi fruits in order to obtain information on the amount of water that this product desorbs at the temperatures of 10, 20, 30 and 40 °C and water activities from 0.20 to 0.89 ...
Kelly A. de Sousa   +2 more
doaj   +5 more sources

Predicting isosteric heats for gas adsorption [PDF]

open access: yesPhys. Chem. Chem. Phys., 2013
A method for predicting the isosteric heat of gas adsorption on solid materials is developed which requires the measurement of a single isotherm - where previous methods, such as the Clausius-Clapeyron approach, require either multiple isotherms or complex calorimetric measurement.
Peter B, Whittaker   +3 more
openaire   +3 more sources

Determination of the hygroscopic equilibrium and isosteric heat of aji chili pepper [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2017
This study focuses on the determination of the hygroscopic equilibrium and isosteric heat of the aji chili pepper (Capsicum baccatum) under different controlled temperature and relative air humidity conditions.
Ednilton T. Andrade   +4 more
doaj   +5 more sources

A re-assessment of the isosteric heat for CCl4 adsorption on graphite [PDF]

open access: yesApplied Surface Science, 2019
We have carried out molecular simulations of carbon tetrachloride adsorption on graphite, in order to investigate the role of the octopole in potential models for the CCl/graphite system, and the temperature dependence of the first-order gas-liquid transition in the first adsorbate layer.
Zhang, Han   +3 more
openaire   +5 more sources

Temperature Dependence of the Isosteric Heat of Adsorption

open access: yesAdsorption Science & Technology, 2001
Direct calorimetric measurements of the isosteric heats of adsorption of (a) pure CO 2 on a strongly heterogeneous adsorbent (silicalite with an alumina binder) and (b) pure N 2 on a mildly heterogeneous adsorbent (5A zeolite) at different temperatures ...
D.V. Cao, S. Sircar
doaj   +2 more sources

Equilibrium isotherms and isosteric heat of pepper variety bico (Capsicum chinense Jacq.) [PDF]

open access: yesActa Scientiarum: Technology, 2015
During processing, the storage requires attention, since the moisture content is a major factor that influences the quality of raw materials and manufactured products. Equilibrium isotherm represents the relationship between the material moisture content
Philipe dos Santos   +4 more
doaj   +6 more sources

Adsorption isotherms and isosteric heat in Coffea arabica beans [PDF]

open access: yesPesquisa Agropecuária Tropical, 2020
ABSTRACT The knowledge of the adsorption hygroscopic equilibrium in coffee is pertinent for the adequacy of its storage, thus ensuring the quality of the product to the end consumer. The present study aimed to determine the adsorption isotherms of Arabica coffee (Acauã Novo cultivar) beans at the temperatures of 30 ºC, 40 ºC, 50 ºC and 60 ºC, as well ...
Samuel Gonçalves Ferreira dos Santos   +4 more
openaire   +6 more sources

Desorption isotherms and isosteric heat of 'cajuzinho-do-cerrado' achenes [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2016
The objective of this study was to determine the desorption isotherms of 'cajuzinho-do-cerrado' achenes (Anacardium humile St. Hil.) in various conditions of temperature and water activity, as well as to select the one that best represents the phenomenon
Karine F. Barbosa   +5 more
doaj   +2 more sources

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