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The process by which solvent molecules pass through a semipermable membrane from a dilute solution into a more concentrated solution.

 

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Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

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Alkyl Group

A group of atoms derived from an alkane by the removal of one hydrogen atom.

Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Coordination Sphere

The metal ion and its coordinating ligands but not any uncoordinated counter-ions.

Calorie

The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

Dry Cells

Ordinary batteries (voltaic cells) for flashlights. radios, and so on, many are Leclanche cells.

Explosive

A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

Ionization Energy

The minimum amount of energy required to remove the most loosely held electron of an isolated gaseous atom or ion.

Gel

Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.