Polynuclear aromatic hydrocarbons

Polynuclear aromatic hydrocarbons

(PAHs) These compounds are large ring aromatic hydrocarbons that are molecules containing carbon and hydrogen. It could also be any large ring that consists of five or more cyclic compounds of carbons and any elements that may be bonded to the ring. They usually exist in nature in low amounts. Many times these hydrocarbons exist within the atmosphere in the aerosol phase from combustion processes.

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Industry/Domain: Chemistry; Weather
Category: Atmospheric chemistry
Educational Institution: Sam Houston State University
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polynuclear aromatic hydrocarbons

Chemistry; Weather; Atmospheric chemistry

(PAHs) These compounds are large ring aromatic hydrocarbons that are molecules containing carbon and hydrogen. It could also be any large ring that consists of five or more ...

polynuclear aromatic hydrocarbons

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A major group of unsaturated cyclic hydrocarbons containing two or more rings. The vast number of compounds of this important group, derived chiefly from petroleum and coal tar, ...

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Chemistry; Atmospheric chemistry

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carbon cycle

Chemistry; Atmospheric chemistry

The process by which carbon is constantly exchanged between living things and the environments. Plants and algae absorb carbon.

diffusion

Chemistry; Atmospheric chemistry

The tendency of two substances that are mixed together to move around until both substances are in all parts of the mixture.

fog

Weather; Atmospheric chemistry

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freeze

Chemistry; Atmospheric chemistry

To change from a liquid to a solid by cooling to the freezing point. Water becomes ice when it freezes.

smoke

Chemistry; Atmospheric chemistry

A mixture of carbon dioxide, water vapour, gases, and often soot that is produced by the burning of a material that contains carbon.

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