chapter 16 vocab Flashcards
the combined enthalpy entropy function
free energy
the amount of heat energy required to raise the temperature of one gram of substance by one Celsius degree or one kelvin degree
specific heat
the amount of heat absorbed or lost by a system during a process at constant temperature
enthalpy change
the SI unit of heat energy
joule
the study of the changes in heat energy that accompany chemical reactions and physical changes
thermochemistry
the sum total of the kinetic energies of the particles in a sample of matter
heat of energy
chemical reactions that absorb energy
endothermic
the disorder or randomness of a system
entropy
the measure of the average kinetic energy of the particles in a sample of matter
temperature
chemical reaction that releases energy
exothermic
the quantity of heat released or absorbed during a chemical reaction
heat of reaction
the heat released or absorbed when one mole of a compound is formed by combination of its elements
molar heat of formation
a device used to measure the heat absorbed in a chemical or physical change
calorimeter
the heat content of a system at constant pressure (H)
enthalpy
the heat released by the complete combustion of one mole of a substance
heat of combusing
