Question

what is thermal energy in chemistry

Answer 1

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Thermal energy in chemistry means the heat released or absorbed during the reaction.Thermal energy sets the particles (molecules,atoms) of reactants in motion.That is why ,it increases their kinetic enegy and thus brings about the chemical reaction.

EXAMPLE:
On heating i.e.providing thermal energy, calcium carbonate decomposes into calcium oxide and carbon dioxide.Here thermal energy is utilized to bring about decomposition of calcium carbonate.

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Answer 2

Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and/or molecules. The atoms and/or molecules of a hotter object have greater kinetic energy than those of a colder one, in the form of vibrational, rotational, or, in the case of a gas, translational motion.

Example :-
A furnace burns natural gas in a chemical reaction. As the natural gas burns, heat is released causing air molecules to move faster. The temperature of the air increases because they have more thermal energy which is used to heat a house.


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