Question

Name one reaction which is accompanied by the evolution of heat.

Answer 1

Answer:

exothermic reaction

An exothermic reaction is a chemical reaction that evolution of energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation is as follows: reactants → products + energy.

Answer 2

Answer:

The reaction in which heat is evolved is called Exothermic Reaction.

Explanation:

One example of this type of reaction is :-

=> CH 4 + O2 = CO2 +H2O +Heat energy.

Balanced:-

=> CH4(g) + 2O2(g) = CO2 + 2H2O +Heat

where ,

CH4 is Methane (Natural Gas )

Burning of methane produces a lot of heat energy.