Question

what is exothermic change?

Answer 1

When heat is evoluted then it is said to be exothermic reaction

For example :- c6H12o6 + o2-----> co2 +H2O + energy



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Answer 2

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The burning of natural gas is an exothermic reaction because heat is produced in this reaction

Ex:

C6H12O6 (aq)+ 6O2(g)----> 6CO2(g)+ 6H2O (l)+ Energy.

Note:

↪ All the combustion reaction are exothermic reaction.

↪ Respiration is an exothermic process because energy is produced during this process.