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Compounds that contain the same number of the same kinds of atoms in different geometric arrangements.

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Standard Entropy

The absolute entropy of a substance in its standard state at 298 K.

Where is ozone used?

Ozone is widely used in various areas of our life. It is used in medicine, in industry, in everyday life.

Freezing Point Depression

The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

Hess' Law of Heat Summation

The enthalpy change for a reaction is the same whether it occurs in one step or a series of steps.

Spectral Line

Any of a number of lines corresponding to definite wavelengths of an atomic emission or absorption spectrum, represents the energy difference between two energy levels.

 

Breeder Reactor

A nuclear reactor that produces more fissionable nuclear fuel than it consumes.

Photochemical Smog

A brownish smog occurring in urban areas receiving large amounts of sunlight, caused by photochemical (light-induced) reactions among nitrogen oxides, hydrocarbons and other components of polluted air that produce photochemical oxidants.

 

Absorption Spectrum

Spectrum associated with absorption of electromagnetic radiation by atoms (or other species) resulting from transitions from lower to higher energy states. An absorption spectrum is the inverse of an emission spectrum.

Nucleons

Particles comprising the nucleus, protons and neutrons.

Hydrate Isomers

Isomers of crystalline complexes that differ in whether water is present inside or outside the coordination sphere.