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Endothermic and Exothermic?
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Why are reversible reactions both endothermic and exothermic? I can't grab hold of this concept.
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Endotherimic means that a reaction between 2 or more substances 'takes in' thermal energy as the chemical reaction takes place.
Exothermic means that the reaction "gives out" thermal energy.
Thermal energy means heat.
Therefore a reversible reaction means that the reaction between the two or more chemicals both absorbs (takes in) and emits (gives out) heat. Reversible means that a reaction can do two things.
Exothermic means that the reaction "gives out" thermal energy.
Thermal energy means heat.
Therefore a reversible reaction means that the reaction between the two or more chemicals both absorbs (takes in) and emits (gives out) heat. Reversible means that a reaction can do two things.
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(Original post by Federerr)
Why are reversible reactions both endothermic and exothermic? I can't grab hold of this concept.
Thanks.
Why are reversible reactions both endothermic and exothermic? I can't grab hold of this concept.
Thanks.
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#4
(Original post by Federerr)
Why are reversible reactions both endothermic and exothermic? I can't grab hold of this concept.
Thanks.
Why are reversible reactions both endothermic and exothermic? I can't grab hold of this concept.
Thanks.
To get the reactants back by the product (back reaction), energy has to be spent again. Without that energy, the product cannot be 'divided' in the reactants.
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