Question

explain why Respiration is an exothermic reaction.

Answer 1

hey mate....

During respiration, glucose molecules are converted to other molecules in a series of steps. They finally end up as carbon dioxide and water. The reaction is exothermic because the C=O and O-H bonds in the products are so much more stable than the bonds in the reactants.

if it helps then pls mark as the brainliest....

Answer 2

Answer :

Respiration refers to the overall process by which organism is abstracted from air and is transported to cells for the oxidation of organic molecules (glucose) while carbon dioxide and water, the product of oxidation, are returned to the environment. During digestion, carbohydrates, we take as food, are broken down into glucose. When we breathe in air, the oxygen enters our lungs. It bind itself with the haemoglobin present in red blood cells and is carried to millions of cells present on the body. Here, glucose 'burns', i.e., gets oxidized to produce carbon dioxide and water be liberation of heat (energy).

Chemical reaction :

$\sf \small C_{6} H_{12} O_{6} (s) + 6O_{2} (g) \longrightarrow 6CO_{2} (g) + 6 H_{2}O(\ell) + 2820 kJ$