Liquid menthonal (CH4O) which is used as a cooking fuel, burns with oxygen gas to produce the gases carbon dioxide and water. The reaction produces 363 kJ of heat per mole of methonol. a) write a balanced equation for the reaction includig the heat of the reaction b) is the reaction endothermic or exothermic? c) How many moles of O2 must react with 0.450 mole of CH4O? d) How many grams of CO2 are produced when 78.0 g of Ch4O reacts?
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.
Liquid menthonal (CH4O) which is used as a cooking fuel, burns with oxygen gas to produce the gases carbon dioxide and water. The reaction produces 363 kJ of heat per mole of methonol.
a) write a balanced equation for the reaction includig the heat of the reaction
b) is the reaction endothermic or exothermic?
c) How many moles of O2 must react with 0.450 mole of CH4O?
d) How many grams of CO2 are produced when 78.0 g of Ch4O reacts?
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