Consider the ionization of xenon in the gas phase. The following reaction equation with an ionization energy of 1170.4 kJ/ mol applies. 1. 2. 3. XeÀ Xé tế Specify the condition sum of the reactant and the products. The state sum of the electron can be specified by means of the expressions known for atoms and molecules. Specify K₂ and simplify assuming that the mass of the ion is equal to the mass of the xenon atom. Calculate the equilibrium constant K, for the ionization of xenon at room temperature (25 °C) and at 10000 °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.
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