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Question
Why is heat released or absorbed in a chemical reaction?
Why is heat released or absorbed in a chemical reaction?
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Solution
- Heat is released or absorbed in a chemical reaction because the reactants and products have a different amount of internal energies in them.
- Whether energy will be absorbed or released depends on how much energy is required to break the bonds in the reactants, and how much energy is released during the formation of new bonds in the products.
- Reactions in which heat is released are called exothermic reactions and reactions in which heat is absorbed are known as endothermic reactions.
- Heat is released or absorbed in a chemical reaction because the reactants and products have a different amount of internal energies in them.
- Whether energy will be absorbed or released depends on how much energy is required to break the bonds in the reactants, and how much energy is released during the formation of new bonds in the products.
- Reactions in which heat is released are called exothermic reactions and reactions in which heat is absorbed are known as endothermic reactions.
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