If a process is exothermic, its reverse reaction will also be exothermic if âH < 0.
Exothermic reaction: what is it?
An exothermic reaction is one in which the overall standard enthalpy change (H) is negative, according to thermochemistry. Exothermic processes typically produce heat. Exergonic reaction, which even the IUPAC defines as "... a reaction for which the overall standard Gibbs energy change G is negative," is frequently mistaken with the phrase. Because "H" contributes significantly to "G," a strongly exothermic process is typically also exergonic. Exothermic and exergonic chemical reactions represent the majority of the spectacular displays in schools. An endothermic reaction, on the other hand, frequently produces heat and is fueled by the a rise in system entropy.
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