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Physical Chem Final
quantum physics
12
Chemistry
Undergraduate 3
05/09/2011

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Cards

Term
Weight (W)
Definition
W=N!/(n0! n1! n2!)
Term
Most probable distribution
Definition
d(lnW) = (dlnW/dni)dni
Term
meaning of q
Definition
number of thermally accessible states
Term
average energy E
Definition
= E/N = -1/q dq/dβ
Term
Internal Energy (U)
Definition
N/q dq/dβ (3/2nRT for ideal gases)
Term
molar entropy
Definition
S/mol = Rlnq + ∆U/T
Term
for two energy levels, q=
(n0 and n1)
Definition
q=e^(0/KbT) + e^(-E1/KbT)
Term
for equally spaced ladder of energy levels, q=
Definition
q= 1/(1-e^(-βE)
Term
for particle in 1-d box, q=
Definition
a/Λ = [(2πm/h^2β)^1/2] x a
Term
for particle in 3-d box, q=
Definition
v/Λ^3 = [(2πm/h^2β)^3/2] x a^3
Term
for translation partition function, q=
Definition
qt=v/Λ^3
Term
Boltzman entropy
Definition
S=KblnW
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