why does heat gets released/absorbed during chemical reactions?
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1
Answer:
The enthalpy difference between the reactants and the products is equal to the amount of energy absorbed from the surroundings. ... Because reactions release or absorb energy, they affect the temperature of their surroundings. Exothermic reactions heat up their surroundings while endothermic reactions cool them down.
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19
Answer:
Because the reactants have enthalpy content before the reaction and when these are converted into the products which have a different enthalpy content. So, heat gets released or absorbed. even if temperature of reaction remains constant period due to the change in bonding energies∆E≠0
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