By ECZ Study Tool, September 23, 2023
An exothermic reaction is a chemical reaction that releases heat energy to its surroundings. Think of it as a heat-giving reaction where the products of the reaction have lower energy than the reactants. Exothermic reactions often feel warm to the touch and can even produce flames or heat when they occur.
In exothermic reactions, the energy
released is typically in the form of heat, but it can also manifest as light or
sound. These reactions are characterized by a decrease in the internal energy
of the system, as the energy is transferred from the reactants to the
surroundings.
Key points about exothermic reactions include:
Heat Evolution: Exothermic reactions give off heat energy, making
their surroundings warmer. This property is why they are often associated with
combustion and many chemical reactions that produce heat.
Spontaneous: Exothermic reactions tend to occur spontaneously when
the reactants come into contact with each other and provide the necessary
activation energy to initiate the reaction.
Examples: exothermic reactions include combustion reactions example
burning of wood, acid-base neutralization reactions example mixing an acid with
a base and various oxidation reactions example in rusting of iron.
Applications: Exothermic reactions have practical applications in
various fields, from energy production example in combustion engines.
Exothermic reactions are important
in understanding the energetics of chemical processes and have a wide range of
applications in our daily lives and industries.
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