Chemistry 1120: Chapter 7 Questions And All Correct Answers.

potential energy - Answer stored energy kinetic energy - Answer the energy of an object in motion heat - Answer a measure of the transfer of thermal energy bond dissociation energy - Answer the amount of energy that must be supplied to break a bond and separate the atoms in an isolated gaseous molecule endothermic - Answer a process or reaction that absorbs heat exothermic - Answer a process or reaction that releases heat law of conservation of energy - Answer energy can be neither created nor destroyed in any physical or chemical change heat of reaction - Answer the difference between the energy of bonds broken in reactants and the energy of bonds formed in products; "enthalpy change" (∆H) enthalpy - Answer a measure of the amount of energy associated with substances involved in a reaction; H enthalpy change - Answer an alternative name for heat of reaction; (∆H) spontaneous process - Answer a process or reaction that, once started, proceeds on its own without any external influence entropy - Answer a measure of the amount of molecular disorder in a system; S entropy change - Answer a measure of the increase in disorder (∆S = +) or decrease in disorder (∆S = -) as a chemical reaction or physical change occurs free-energy change - Answer a measure of the change in free energy as a chemical reaction or physical change occurs; ∆G