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Why is respiration considered an exothermic reaction? Explain.

Question

Why is respiration considered an exothermic reaction? Explain.

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Solution

Respiration is considered an exothermic reaction due to the following reasons:

  1. Definition of Exothermic Reactions: Exothermic reactions are chemical reactions that release energy in the form of heat.

  2. Process of Respiration: During respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide, water, and energy. The chemical equation for this process is: C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy.

  3. Energy Release: The energy that is produced during respiration is not stored, but rather it is released, mostly in the form of heat. This is why when we exercise, our body temperature increases because the rate of respiration has increased.

  4. Comparison to Endothermic Reactions: This is in contrast to endothermic reactions, where energy is absorbed from the surroundings in the form of heat.

Therefore, because respiration is a process that releases energy, it is considered an exothermic reaction.

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