Question

why is respiration considered as an exothermic reaction ? Explain

Answer 1

Respiration process consist of oxidisation of glucose within the body. This reaction cause release of energy which is required by the body to function. As there is a release of energy in the reaction, it is an exothermic reaction.

Answer 2

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Respiration is considered as an exothermic reaction because in respiration oxidation of glucose takes place which produces large amount of heat energy.

C6H12O6 (aq) + 6O2 (g) → 6CO2 (g) + 6H2O (l) + Energy