Silanone (SİH2O) and silanol (SİH3OH) are species believed to be important,in the oxidation of silane (SİH4). These species are much more elusive than their carbon counterparts. The following standard enthalpies of formation have been reported in the past: SiH2O = - 98.3 kJ mol-!, SIH3OH = - 282 kJ mol, SiH4 = 34.3 kJ mol-1, and H2O -285.83 kJ moll. Compute the standard enthalpy of reaction when (a) silane reacts with oxygen to form silanol and when (b) silane reacts with oxygen to form silanone.
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.
Please answer in 4 decimal places. Thank you!
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