Essays Tagged: "liquid phase"

Lab report on E2 substitution on alkyl halides.

as column chromatography. The only differences are that it uses a moving gas phase and a stationary liquid phase, and that the temperature of the gas system can be controlled. In a gas chromatograph t ... d the carrier gas which sweeps the vaporized sample into a column filled with particles filled with liquid adsorbent. This column is usually filled with liquid that has a low vapor pressure and high b ...

(3 pages) 60 0 4.0 Nov/2003

Subjects: Science Essays > Chemistry

Lab report on gas chromatograph and the optical activity of carvones.

as column chromatography. The only differences are that it uses a moving gas phase and a stationary liquid phase, and that the temperature of the gas system can be controlled. In a gas chromatograph t ... d the carrier gas which sweeps the vaporized sample into a column filled with particles filled with liquid adsorbent. This column is usually filled with liquid that has a low vapor pressure and high b ...

(3 pages) 41 0 4.8 Dec/2003

Subjects: Science Essays > Chemistry

What is Sublimation

he solid phase directly to the vapour phase, or vice versa, without passing through an intermediate liquid phase.2. Sublimation is the process of a solid changing form a gas to a solid without going t ... emperature but some are very low to go directly to a solid so for an easier process they got to the liquid state by going to a higher temperature , so that then it can be frozen and then begin to subl ...

(1 pages) 28 1 2.7 Mar/2005

Subjects: Science Essays

Sublimation

to another by adding of removing heat. As most materials are heated they go from a solid phase to a liquid phase and then to a gas. When heat is removed the process is reversed.Sublimation is an unusu ... which the substance is transformed from the solid to the gaseous phase without passing through the liquid phase.Deposition is the reverse process.Materials: Iodine crystals, ice, 100mL beaker, watch ...

(2 pages) 3666 0 0.0 Oct/2001

Subjects: Science Essays > Chemistry

Biological Importance of Water

The Biological Importance of Water Water is a liquid that is colorless, transparent and odorless. It is one of the most important biological syste ... es that make it essential to all life. Water exists in nature in all three states of matter (solid, liquid, gas), and it also covers 75% of the earth and composes roughly 78% of our body. Most of wate ... ext page show such a hydrogen bond. The resulting clusters of molecules make water cohesive. In its liquid phase, H-bonds are distorted and the network of molecules is irregular. When water freezes, t ...

(2 pages) 13 0 3.0 Mar/2008

Subjects: Science Essays > Biology

Adsorption

al oils and fats, and waxesBauxitePercolation treatment of petroleum fractions; drying of gases and liquidsAcid-treated claysContact filtration and refining of petroleum fractionsBone char, bone black ... g carbonRefining of sugars, oils, fats, and waxes; decolorizing and purification of water and other liquidsGas-adsorbent carbonSolvent recovery; elimination of odors; purification of gasesAluminaDryin ...

(5 pages) 13 0 5.0 Aug/2008

Subjects: Science Essays > Engineering > Chemical Engineering

Distillation of Mixtures Formal Report

lation. Distillation involves the ideas of vaporization and condensation. Through these procedures, liquid mixtures can be purified. An important step in the process is finding a boiling point. When l ... rgy added to the system. Once enough energy has been added, a molecule can change its conformation (liquid to a gas). Once a molecule changes from the liquid phase to the vapor phase, the vapor exerts ...

(8 pages) 13 0 0.0 Apr/2009

Subjects: Science Essays > Chemistry