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Review on Photo Energy Systems for Chemical Emission and Absorption Processes

Nagham Mahmood Aljamali, Maysaa A Alhar, Khudheyer Abbas Aziz Alnomani

Abstract


The review is concerned with the applications of photochemical processes in emission and chemical
absorption reactions, as there are many processes that include photochemical applications. In
humans, for example, photochemistry depends on the production of vitamin D. A chemical application
can be described as a chemical reaction caused by light, in addition to the fact that some reactions
require heat to take place. The absorption spectrum is used to measure the gases harmful to the
environment in the atmosphere, as it is possible to identify each gas among the gases mixed with the
air. It is also frequently used in astronomical measurements of galaxies and analysis of cosmic dust
and its contents of carbon, silicon, iron, and others. It can also determine the types of gases and
molecules, but also the density of each., In the case of photochemical reactions, light provides the
activation energy. Likewise, emission from a particular state can be monitored selectively, providing
a measure of the population in that state. If the chemical system is under reduced pressure, this
enables scientists to observe the energy distribution of the products of a chemical reaction before
staining and averaging the energy differences by repeated collisions.


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References


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