3 years ago

What is the sign of the heat change for an exothermic reaction? for an endothermic reaction?

1 answer:

3 0

A system that releases heat to the surroundings, an exothermic reaction, has a negative ΔH by convention, because the enthalpy of the products is lower than the enthalpy of the reactants of the system. The enthalpies of these reactions are less than zero, and are therefore exothermic reactions

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