Why is respiration consider an exothermic proces?
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The friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object.
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Exothermic reactions release heat or energy.When you or we breath out,breath is warmer.This is happened for respiration reaction of our body.
Carbohydrates present in food are broken down to form glucose.This glucose combines with oxygen in the cells of our body and provides energy.This reaction is known as respiration.hence,respiration is considered as an exothermic reaction.
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