Class 11

Catalysis is the process in which a chemical reaction is performed in the presence of an enzyme. By employing a catalyst or an enzyme, the rate of the reaction increases. Such a process is said to be enzyme catalysis. Catalysts are the biological components present in the body that have a specific role to play. […]

A catalyst is a substance that accelerates chemical reactions. Molecules that would usually take ages to react can now do so in seconds due to the assistance of a catalyst. Catalysts are used in manufacturing everything from plastic to pharmaceuticals. Catalysts aid in the conversion of petroleum and coal to liquid fuels. They’re the leading

Calcination is a thermal treatment of something like a solid chemical compound, for instance. The mixture is heated to high temperatures without heating up in the presence of a limited supply of ambient oxygen, i.e. the gaseous O2 fraction of air. This is generally done to remove impurities or volatile substances and induce thermal decomposition. 

This article provides a thorough understanding of what calcination is and Calcination examples. Calcination is usually carried out to remove the volatile and moisture impurities present in a metal substance, usually by heating it at high temperatures with no supply of air or oxygen. Essentially, the process helps prevent crevice corrosion due to the deposition

German chemist Wilhelm Ostwald introduced the concept of autocatalysis to characterise the rate of a reaction as a function of time. To understand autocatalysis, we must first understand catalysis. Catalysis is a chemical procedure in which the reaction rate is affected (usually an acceleration) by adding a substance known as a catalyst.  According to the

In heterogeneously catalysed reactions, Langmuir explained the role of adsorption on catalysts. Contact catalysis refers to the adsorption of the reactant molecules on the catalyst surfaces. The adsorption concept of catalysis claimed that reactants in their gaseous state are adsorbed onto the surface of a solid catalyst. The pace of the reaction is accelerated by

Solid catalysts simplify the separation of catalysts from processes and provide for the potential of reusing those catalysts. Catalyst selectivity and activity are significant concepts. In nature, catalytic surfaces are usually inactive. The catalyst is activated whenever a reactant is adsorbed on its surface. This initiates the subsequent reaction process.  Solid acid catalysts are highly