preAP Chem 2013-2014 1 NOTES: Energy in Chemical Processes Name ______________________________ Period ________ Energy and Heat ? Energy is defined as the ability to do _________ or produce ___________; the sum of all potential and kinetic energy in a system is known as the internal energy of the system. It comes from the energy stored in ____________ (______________ energy) and from the ____________ of atoms and molecules (______________ energy). ? Heat is defined as the ______________ of energy from a warmer object to a cooler object. Do not confuse the terms heat and temperature. Heat is the _____________ of the energies of the molecules