Which of the following best explains why the combustion reactions represented in the table are exothermic? (see attached image) a.) The number of bonds in the reactant molecules is greater than the number of bonds in the product molecules. b.) The number of bonds in the reactant molecules is less than the number of bonds in the product molecules. c.) The energy required to break the bonds in the reactants is greater than the energy released in forming the bonds in the products. d.) The energy required to break the bonds in the reactants is less than the energy released in forming the bonds in the products.
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.
Which of the following best explains why the combustion reactions represented in the table are exothermic?
(see attached image)
a.) The number of bonds in the reactant molecules is greater than the number of bonds in the product molecules.
b.) The number of bonds in the reactant molecules is less than the number of bonds in the product molecules.
c.) The energy required to break the bonds in the reactants is greater than the energy released in forming the bonds in the products.
d.) The energy required to break the bonds in the reactants is less than the energy released in forming the bonds in the products.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
