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Parachor is a scientific quantity defined according to the formula: P = γ * M / d where γ is the fourth root of surface tension, M is the molar mass, and d is the density. Parachor "has been used in solving various structural problems.

Printed dictionaries and other books with definitions for Parachor

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Google previewPrediction of the Environmental Fate of Chemicals (2012)

by Y. Samiullah

Parachor is a molecular size parameter best conceptualized as molar volume corrected for surface tension. The capacity ratio (k'), in this case determined experimentally by reverse-phase high performance liquid chromatography, was ...

Google previewResidue Reviews (2013)

Residues of Pesticides and Other Contaminants in the Total Environment by Francis A. Gunther, Jane Davies Gunther

Parachor is a measure of molecular size or volume. LAMBERT (1967) developed an equation relating the Freundlich equilibrium constant to parachor with a series of 2,6-dinitro-4-alkylsulphophenyl-N,N-dialkylanilines and phenylureas: ln Ke ...

Google previewChemistry for Degree Students (B.Sc. 1St Yr.) (2010)

by R L Madan

Parachor is a property which is : (a) additive-cum- constitutive (b) colligative (c) additive (d) none ANSWERS Fill in the blanks 1.

Google previewPesticides in the Soil Environment (2016)

by Shahamat U. Khan

Parachor is an approximate measure of the molar volume of a molecule and is a constitutive and additive function of molecular structure (Lambert, 1967). (2) Langmuir adsorption equation - The Langmuir adsorption equation was initially ...

Google previewA to Z of Thermodynamics (1998)

by Pierre Perrot

The parachor is a function of temperature, is directly related to the structure of the molecule, and may be calculated by adding increments relating to atoms and bonds. 220 Paradigm Paradigm — From the Greek napx6er/nx, example. A.

Google previewEncyclopedia of Physical Organic Chemistry, 6 Volume Set (2017)

by Zerong Wang, Uta Wille, Eusebio Juaristi

Parachor Value Parachor is an additive and constitutive molecular parameter consisting of two physical properties, molar volume and surface tension, ...

Google previewMolecular Design (2012)

Chemical Structure Generation from the Properties of Pure Organic Compounds by A.L. Horvath

Parachor is an additive property depending on the elements present in the molecule and the configuration of the atoms.

Google previewGas Turbine Fuels and Their Influence on Combustion (1986)

by J. Odgers, D. Kretschmer

The quantity [/'| is termed the Parachor and is a measure of the molecular volume at temperatures at which different liquids have the same surface tension. The parachor is an additive property, e.g. the value for ...

Google previewVapour–Liquid Equilibrium (2013)

by Eduard Hála, Jiří Pick, Vojtěch Fried

is the parachor. The parachor is a measure of ...

Google previewMethods in Food Analysis (2012)

Applied to Plant Products by Maynard Joslyn

The parachor is a function of surface tension y, density of the liquid D, and density of the vapor, d, given by My14 _D_——d_ A function termed the specific refractive power of a solution is defined as (n -— 1) /D. These functions indicate that ...

Google previewSeparation Process Principles (2016)

by CTI Reviews

Parachor: Parachor is a scientific quantity defined according to the formula: P = γ1/4 * M / d where γ1/4isthefourth root of surface tension, M is the molar mass, and d is the density. Parachor 'hasbeen used insolving various structural problems.

Google previewAdvanced Physical Chemistry (1978)

For example, parachor is an additive as well ...

Google previewCollection of Problems in Physical Chemistry (2013)

Pergamon International Library of Science, Technology, Engineering and Social Studies by Jiří Bareš, Čestmír Černý, Vojtěch Fried

Solution The parachor is a measure of molecular volume at standard surface tension and is defined by the relation M. Y.1/4 [P] =##, (1) du-do where M is the molecular weight, Y the surface tension in and d and d, the densities of the ...

Google previewPrediction of Transport and Other Physical Properties of Fluids (2013)

International Series of Monographs in Chemical Engineering by S. Bretsznajder

Parachor The parachor is a constitutive quantity which characterizes a liquid compound and depends on surface tension. The surface tension of a liquid depends on the magnitude of the forces acting on the molecules at the liquid surface.

Google previewSingle Pesticide Volume: The Triazine Herbicides (2012)

by Francis A. Gunther, Jane Davies Gunther

Parachor is a measure of molecular size. McEwAN (1948) stated that the number of monomolecular layers adsorbed on internal surfaces by montmorillonite in contact with an excess of the liquid 50 G. W. BAILEY and J. L. WHITE.

Google previewModern dictionary (1990)

physical chemistry by Satake & Nahahiro

Parachor The physical quantity parachor means comparative volume. It is defined as where Vm is the molar volume of the liquid and 7 is its surface tension. The comparison of the parachors of different liquids is equivalent to comparison of ...

Google previewA Dictionary of Physical Sciences (1976)

by John Daintith

parachor of revolution is a special type of elliptic paraboloid produced by rotating a parabola about its x axis. This shape is used in devices for producing a parallel beam of radiation from a point source or for focusing a parallel beam to a point, ...

Google previewMacmillan Dictionary of Chemistry (1987)

by D. Brynn Hibbert, A.M. James

Although primarily an additive property, it is not without constitutive influence; parachor equivalents of atoms, groups and bonds were once used extensively in establishing molecular structures. paracyanogen. See CYANOGEN. paraffin.

Google previewSterling Dictionary of Physics (1999)

by Jasvinder Singh

Parachor : A relation showing the influence of temperature upon the surface tension of a liquid - interpreted as the 187 Packing Fraction : The difference between the mass of an ...

Google previewElsevier's Dictionary of Chemoetymology (2006)

The Whys and Whences of Chemical Nomenclature and Terminology by Alexander Senning

parachalcogen derived from paraelement and chalcogen parachor derived from para- and choros (Greek: space) parachrysotile Mg3Si2O5(OH)4, derived from para- and chrysotile – referring to this mineral's close relationship with chrysotile ...

Google previewBlackie’s Dictionary of Chemistry

by Blackie

Parachor (P) It is expressed as 1/4 P= ã [M/(D-d)] where ã= surface tension,M= molecular weight, D=density of liquid, d= density of vapour. Paraffin Paraformaldehyde Fraction of petroleum in the range 160-250°C. It is used to makefractions.

Google previewPocket Medical Dictionary (1999)

by B. Jain Publishers Staff

Parachor' dal.

Google previewThe Imperial Dictionary and Encyclopedia of Knowledge Unabridged (1892)

Etymological and Pronouncing Literary, Scientific and Technical ... by Charles Annandale

Parachor at-akor'dal, n. (Gr. £ beside, and chordé, a. chord.j One of the cartilaginous plates which form the first appearance of the skull in the embryo of vertebrates.

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Scrabble value of P3A1R1A1C3H4O1R1

The value of this 8-letter word is 15 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

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