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Chapter 7 part 1

Chemical Reactions: Energy, Rates, and Equilibrium

definitionterm
a measure of the transfer of thermal energy Heat
The amount of energy that must be supplied to break a bond and separate the atoms in an isolated gaseous molecule. Bond dissociation energy
a process or reaction that absorbs heat Endothermic
a process or reaction that releases heat Exothermic
the difference between the energy of bonds broken in reactants and the energy of bonds formed in products. Heat of reaction or enthalpy change
a measure of the amount of energy associated with substances involved in a reaction. Enthalpy
a process or reaction that, once started, proceeds on its own without any external influence. Spontaneous process
a measure of the amount of molecular disorder in a system Entropy
a measure of the increase in disorder or decrease in disorder as a chemical reaction or physical change occurs. Entropy Change
a measure of the change in free energy as a chemical reaction or physical change occurs. Free energy change
a spontaneous reaction or process that releases free energy and has a negative delta G. Exergeonic
a non-spontaneous reaction or process that absorbs free energy and has a positive delta G. Endergonic
Created by: Seisem
 

 



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