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Definitions
Chapter 5
26
Chemistry
Undergraduate 1
12/12/2013

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Term
work
Definition
F*d
Term
Potential energy
Definition
Energy that is stored
~PE= m*g*h
Term
Thermal equillibrium
Definition
Temperature is the same and no further heat transfer occurs
Term
Kinetic Energy
Definition
the energy of motion
~KE= 1/2 mu^2
Term
Law of conservation of energy
Definition
Energy cannot be created nor destroyed
Term
Electrostatic potential energy continued
Definition
=Q1*Q2/distance
~where Q= energy
Term
Electrostatic Potential Energy
Definition
[image]
Term
isolated system
Definition
Doesn't exchange energy or matter with the surroundings
Term
Closed system
Definition
Exchanges energy but not matter with the surroundings
Term
open system
Definition
exchanges both energy and matter with the surroungings
Term
Exothermix
Definition
Gives off heat/energy
q<0
will be negative
Term
Endothermic
Definition
Takes in heat/energy
q>0
will be positive
Term
Delta Energy
Definition
1)Efinal-Einitial
2)q+w
3)q+ (-PdeltaV)
4)q-PdevltaV
Term
Energy
Definition
Joule
Term
heat
Definition
q
Term
Ideal Gas Law
Definition
PV=nRT
Term
Enthalpy Change (Delta H)
Definition
1)qsubp
2)DeltaE + PdeltaV
Term
Enthalpy
Definition
E+PV
Term
Molar Heat Capacity
Definition
1)q=mcsubpdeltaT
Term
Specific Heat
Definition
q=mcsubsdeltaT
~energy gained or lost from a system
Term
Molar heat of fusion
Definition
q=nDeltaHfusion
Term
Molar heat of vaporization
Definition
q=nDeltaHvaporization
Term
Total heat
Definition
qtot=qsub1+qsub2+qsub3...etc
Term
Csubs water
Definition
4.184 Joules/g*degreescelcius
Term
DeltaHrxn
Definition
deltaHrxn of products - DeltaHrxn of reactants
Term
Hess's Law
Definition
DeltaH1+DeltaH2=DeltaH3
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