olo 6 A major component of gasoline is octane (C,H,). When liquid octane is burned in air it reacts with oxygen (0,) gas to produce carbon dioxide gas and water vapor. Calculate the moles of water produced by the reaction of 1.1 mol of octane. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. OLX
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.
When Gasoline's octane is burned with oxygen, then Following balanced Reaction is obtained -
2C8H18 + 25O2 -----> 16CO2 + 18H2O
Here, 2 mole of octane reacts with 25 moles of oxygen to give 16 moles of Carbon dioxide and 18 moles of water.
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