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molar volume

   Also found in: Wikipedia, Hutchinson 0.03 sec.
molar volume, the volume occupied by a mole mole, in chemistry, a quantity of particles of any type equal to Avogadro's number, or 6.02×1023 particles. One gram-molecular weight of any molecular substance contains exactly one mole of molecules.
..... Click the link for more information.  of a substance at STP STP or standard temperature and pressure, standard conditions for measurement of the properties of matter. The standard temperature is the freezing point of pure water, 0°C; or 273.15°K;.
..... Click the link for more information. . According to Avogadro's law, at a given temperature and pressure a given volume of any gas contains the same number of molecules. At STP 1 mole of gas occupies 22.414 liters. This volume is what is usually meant by the molar volume, although one can also speak of molar volumes of substances that are not gaseous at STP. Since at STP water occupies very nearly 1 cc per gram, and since 1 mole of water molecules weighs very nearly 18 grams, the molar volume of water is about 18 cc. The molar volume of osmium, one of the densest metals, is only about 8.4 cc; that of beryllium is only about 4.86 cc.
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where, X = polymer-solvent interaction parameter, [rho] = density of polymer and V = molar volume of solvent.
A new approach to optimize cure cycle of a tire using DSC by Mohamed, P.K. / Rubber World
The effect of an impurity is negligible because the molar volume depends only weakly on composition.
Two primary standards for low flows of gases by Tison, Stuart A. / Journal of Research of the National Institute of Standards and Technology
As part of this work, he measures the apparent molar volume -- how much a mole of sweetener dissolved in water changes the water's volume.
Scientists examine the nature of the sweet tooth by Pennisi, Elizabeth / Science News
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