Physical and Chemical Properties of CaCl2/H2O and LiBr/H2O Systems Confined to Nanopores of Silica Gels

1996 ◽  
Vol 457 ◽  
Author(s):  
Yurii I. Aristov ◽  
Mikhail M. Tokarev ◽  
Gaetano Cacciola ◽  
Giovanni Restuccia ◽  
Gaetano DiMarco ◽  
...  
Keyword(s):  
Thermodynamic Properties ◽  
Partial Pressure ◽  
Specific Heat ◽  
Chemical Properties ◽  
Silica Gels ◽  
Physical And Chemical Properties ◽  
Sorbed Water ◽  
Vapor Partial Pressure ◽  
Physical And Chemical ◽  
And Chemical Properties

ABSTRACTHere we present physical and chemical properties of CaCl2/H2O and LiBr/H2O systems confined to nanopores of silica gels. Sorption isobars, isosters and isotherms were measured at temperature 293 – 423K and vapor partial pressure 8–133 mbar. Specific heat of the systems was found as a function of temperature (300 – 400K) and sorbed water content (0 – 53 wt.%). Solidification/melting diagrams were measured over 170 – 320K temperature range at salt concentrations 0–50 wt.%. The results obtained evidenced a significant change in the thermodynamic properties of CaCl2/H2O and LiBr/H2O systems due to confinement to the silica gel micropores.

Influences of Nano–Effect on Thermodynamic Properties of Solid–liquid Interfaces: Theoretical and Experimental Researches

CrystEngComm ◽  
2021 ◽  
Author(s):  
Huijuan Duan ◽  
Zuohui Cheng ◽  
Yongqiang Xue ◽  
Jinzhong Zhao ◽  
Meihong Yang ◽  
...  
Keyword(s):  
Thermodynamic Properties ◽  
Chemical Properties ◽  
Interfacial Properties ◽  
Physical And Chemical Properties ◽  
Liquid Interfaces ◽  
Solid Liquid ◽  
Physical And Chemical ◽  
Experimental Researches ◽  
And Chemical Properties

The unique physical and chemical properties of nanoparticles are closely related to the interfacial properties which depend on nano–effect. Herein, we analyzed theoretically the relationships of interfacial thermodynamic properties with...

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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