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.
![For the reaction:
H₂O(l)
2NH3(g) + CO2(g) = (NH2)2CO(s) +
ΔΗ = – 330 kJ
==
Predict how each of the following changes would
impact a reaction that is currently at equilibrium.
That is, which way would the reaction progress in
order to respond to the change in the system to
regain equilibrium (use arrows to show the
direction of change that would occur to return back
to equilibrium). Explain your reasoning for each
part.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9175730e-34f8-488e-b457-73bdab4b50cd%2F732b65c2-42f7-4d03-939f-804da91e31ef%2Fwfviuc_processed.jpeg&w=3840&q=75)
![What would be the impact to equilibrium if by
increasing volume? Which direction would the
reaction to progress to get back to equilibrium,
and why?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9175730e-34f8-488e-b457-73bdab4b50cd%2F732b65c2-42f7-4d03-939f-804da91e31ef%2Fwerceeg_processed.jpeg&w=3840&q=75)
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