Photochemical Decomposition of Ammonia
Chemistry

Photochemical Decomposition of Ammonia

In photochemical decomposition of ammonia the quantum yield varies from about 0.1 to 0.5 depending on the temperature of the reaction. The low quantum yield…
Chemiluminescence
Chemistry

Chemiluminescence

Chemiluminescence is the phenomenon of emission of light as a result of certain chemical reactions. The slow oxidation of white phosphorus is an example. Other…
Phosphorescence
Chemistry

Phosphorescence

Phosphorescence: If the emission of light continues after the source of exciting radiation is cut off the phenomenon is known as phosphorescence. The period of…
Fluorescence
Chemistry

Fluorescence

Fluorescence: Emission of light by excited atom or molecules soon after excitation has stopped is known as fluorescence. It is the emission of light by…
Luminescence
Chemistry

Luminescence

Luminescence As a result of the absorption of light; molecules or atoms are excited, i.e. have more energy. In nearly all cases some or all…
Absorption of Light: Beer-Lambert Law
Chemistry

Absorption of Light: Beer-Lambert Law

Absorption of Light: Beer-Lambert Law If material bodies are exposed to radiation, part of the incident radiation is absorbed, a part is scattered and a…
Consequences of the Absorption of Light
Chemistry

Consequences of the Absorption of Light

Consequences of the Absorption of Light Light is a form of energy. According to the principle of photochemical activation, only that part of the light…
Photochemistry
Chemistry

Photochemistry

Photochemistry The branch of chemistry which deals with chemical reactions mediated by light is called photochemistry. The term ‘light’ is used to include all kinds…
Hydrogen-Oxygen Chain Reaction
Chemistry

Hydrogen-Oxygen Chain Reaction

Hydrogen-Oxygen Reaction The gas phase reaction between hydrogen and oxygen to produce water is quite complex. Experimentally it is found that the reaction rate is…
Hydrogen-Chlorine Chain Reaction
Chemistry

Hydrogen-Chlorine Chain Reaction

Hydrogen-Chlorine Chain Reaction An example of chain reaction is the reaction between hydrogen and chlorine the presence of light. According to the laws of photochemistry,…
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