The copper (1) ion is a curious species. In aqueous solutions, there are a number of reactions that it can undergo; one is the reaction with other copper(1) ions: 2 Cu+ (aq) → Cu²+ (aq) + Cu(s) AH (kJ/mole) S°(J/K) Cu+ (aq). 71.67 40.6 Cu²+ (aq). 3.5 x 104; increase 1.2 x 106; decrease O 2.2 x 107 increase O 2.2 x 107 decrease 3.5 x 104 decrease 64.77 -99.6 Using the tabulated data, calculate the equilibrium constant for this reaction of Cu+ (aq) at 298 and predict whether it will increase or decrease with increasing temperature. Choose from the following. SUPPORT
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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