explain your choi 23 22 21 20 19 18 17 16 15 60 120 180 Time (s) Endothermic Exothermic b) Would the enthalpy of the products of this reaction be lower than that of the reactants? Brie explain your reasoning. Temperature ("C)
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.
- Imagine that you monitor the temperature of an aqueous solution for several seconds before adding a reactant to it. The curve below shows what happens.
- Circle the word that describes best the resulting reaction and briefly explain your choice.
Endothermic Exothermic
- Would the enthalpy of the products of this reaction be lower than that of the reactants? Briefly explain your reasoning.
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