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At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

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    Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...



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Osmotic Pressure

The hydrostatic pressure produced on the surface of a semipermable membrane by osmosis.

Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, there is no net change in concentrations of reactants or products while a system is at equilibrium.

Pairing

A favourable interaction of two electrons with opposite m , values in the same orbital.

Substitution Reaction

A reaction in which an atom or a group of atoms is replaced by another atom or group of atoms.

Specific Gravity

The ratio of the density of a substance to the density of water.

Molality

Concentration expressed as number of moles of solute per kilogram of solvent.

xanthate

A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.

Secondary Voltaic Cells

Voltaic cells that can be recharged, original reactanats can be regenerated be reversing the direction of the current flow.

Denaturation

A process pertaining to a change in structure of a protein form regular to irregular arrangement of the polypeptide chains.

Bonding Orbital

A molecular orbit lower in energy than any of the atomic orbitals from which it is derived, lends stability to a molecule or ion when populated with electron.