A carbon-oxygen single bond has a bcnd enei gy of 358 kJ/mol. Which of the following statements accurately describes the consequence of this fact? A. A C-O bond contains 358 kJ/mol of energy. B. It requires 358 kJ/mol of energy to break a C-O bond. C. A carbon-oxygen double bond would have a bond energy lower than 358 kJ/mol. D. The breaking of a C-O bond would release 358 kJ/mol of energy.
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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