Think about the reaction Na₂CO3(aq) + H₂SO4(aq) NaOH(aq) + H₂SO4(aq) NaCl(aq) + HC₂H₂O₂(aq) clear clear clear bubbling heat detected clear no heat clear no heat No reaction occurred Endothermic Exothermic Gas producing Neutralization Precipitation Redox No reaction occurred Endothermic Exothermic Gas producing Neutralization Precipitation Redox No reaction occurred Endothermic Exothermic Gas producing Neutralization Precipitation Redox
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![Think about the reaction
Na₂CO3(aq) + H₂SO4(aq)
NaOH(aq) + H₂SO4(aq)
NaCl(aq) + HC₂H₂O₂(aq)
clear
clear
clear
bubbling
heat detected
clear
no heat
clear
no heat
No reaction occurred
Endothermic
Exothermic
Gas producing
Neutralization
Precipitation
Redox
No reaction occurred
Endothermic
Exothermic
Gas producing
Neutralization
Precipitation
Redox
No reaction occurred
Endothermic
Exothermic
Gas producing
Neutralization
Precipitation
Redox](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F52b882e6-5896-4017-be46-ff3845ccab43%2F543ce8af-a08a-4526-ac63-0db7deda008e%2Fi519ed_processed.jpeg&w=3840&q=75)
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