There is an increase in temperature when the rate of chemical reactions increases.
The chemical reaction is the process in which the two or more substances where the reactions are converted into one or more different substances. These may be either chemical elements or compounds.
The chemical reaction rearranges the atoms of the reactants to create the different substances of the product. The speed of the reaction depends on the rate of temperature and as well reactant itself.
Find out more information about the chemical reactions.
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Answer:
It increases when a catalyst is added.
Explanation:
"A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism." (Khan Academy)
