3. Activity 2: Complete the table with the appropriate information according to the given data. The first row is done for you. AE of Energy change of Energy change of surroundings 950 kJ absorbed from 950 kJ released to the system system ex + 950 kJ the surroundings system + 350 kJ 24 kJ absorbed from the surroundings 1,035 kJ absorbed form the system 4. - 432 kJ 985 kJ released to the 5. surroundings
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.
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