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Chemistry chapter 6

TermDefinition
enthalpy thermodynamic state function equal to internal energy plus the product of pressure and volume
spontaneous describes a process that is able to occur without continuing outside help
chemical thermodynamics the area of chemistry that deals with applying thermodynamics principles to energy changes in chemical reactions
energy ability to do work and change matter
kinetic energy energy associated with motion
potential energy energy associated with the position of an object and the forces acting upon it
internal energy the sum of all the possible forms of energy of all the ions, atoms, and molecules in a system
endothermic describes a process in which energy is absorbed and enthalpy increases
exothermic describes a process in which energy is released and enthalpy decreases
thermochemical equation chemical equation that includes enthalpy of reaction
standard state a substance's normal physical state at a pressure of 100 kPa and a specified temperature
specific heat heat required to cause a unit rise in the temperature of a unit mass of a substance
phase diagram graph that shows the phase, or state, of a substance at different pressures and temperatures
triple point combination of pressure and temperature at which all three phases of a substance are in equilibrium
critical point combination of pressure and temperature above which the distinction between a substance's liquid and gas phases disappears and the substance forms a supercritical fluid
Gibbs free energy thermodynamics state function equal to the difference between enthalpy and the product of temperature and entropy
entropy A measure of disorder or randomness.
heat transfer of energy as a result of a temperature difference
work transfer of energy through a force applied across a distance
Created by: johezzi
 

 



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