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CHEM CHAPTER 13 VOCAB

Horizontales
The change in enthalpy(heat) that occurs during a chemical reaction
The branch of science that studies the transfer of energy during chemical reactions
Heat which produces a phase change in a substance (with no measurable temperature change)
The energy released as heat by the complete burning of one mole of a substance at standard conditions
Internal heat content of a closed system at a constant pressure, used to quantify the change in energy before and after
Insulated container used to detect the temperature change during a chemical reaction
A chemical equation which shows the reactants and products, and the amount of energy released or absorbed as heat
Specific temperature and pressure at which a particular substance can exist in all three phases (from phase diagram in chapter 11)
The amount of thermal energy to raise the temperature of 1 gram of a substance 1 degree C
Quantity of energy required to melt one mole of a solid to its liquid phase
Verticales
ENTHALYOFVAPORIZATION - Quantity of energy required to melt one mole of a liquid at its boiling point, to enter its gas phase
Chemical reaction where the products have more enthalpy than the reactants
Chemical reaction where the products have less enthalpy than the reactants
Change in enthalpy minus the change in entropy
25 degrees C and 1atm.
The unit of measure for heat transfer in chemical reactions
Heat that produces a temperature change in a chemical reaction
States that the enthalpy change of a reaction equals the sum of the enthalpy changes for each step of the process
The measure of the dispersal of energy in a system