January 2014
Physical Chemistry II
It is your responsibility to be aware of all announcements that may be made in class during this
semester. If warranted by circumstances, the instructor may modify course policies during the
semester.
C LASS
CHEM5384001
Test 2
Spring 2014
Physical Chemistry II
Constants
c = 2.998 108 m s1
speed of light
h = 6.626 1034 J s
= 1.055 10
k = 1.38 10
34
23
Planck constant
Js
J K1
Boltzmann constant
hc /k = 1.4388 cm K
e = 1.6022 1019 C
23
N A = 6.022 10 mol
elementary charge
Test 3
Spring 2013
Physical Chemistry II
Constants
c = 2.998 108 m s1
h = 6.626 10
34
Js
= 1.055 10
34
speed of light
Js
Planck constant
k = 1.38 1023 J K1
Boltzmann constant
hc /k = 1.4388 cm K
e = 1.6022 1019 C
elementary charge
N A = 6.022 1023 mol1
A
Test 1
Spring 2014
Physical Chemistry II
Constants
c = 2.998 108 m s1
speed of light
h = 6.626 1034 J s
= 1.055 10
k = 1.38 10
34
23
Planck constant
Js
J K1
Boltzmann constant
hc /k = 1.4388 cm K
e = 1.6022 1019 C
23
N A = 6.022 10 mol
elementary charge
9. Molecules in Motion
Kinetic Theory of Gases (microscopic viewpoint)
assumptions
(1) particles of mass m and diameter d ; ceaseless
random motion
(2) dilute gas: d
, = mean free path = average
distance a particle travels between collisions
(3) no intera
1. Introduction to Quantum Mechanics
thermodynamics: properties of macroscopic system,
no appeal to the properties of the microscopic constituents
general laws and relations
U
V
=T
T
P
T
2T V
C P CV =
T
P
V
(= nR
ideal gas)
C V =?, C P =?
microscopic view
4. The Hydrogen Atom
spectrum of atomic hydrogen
electric discharge through hydrogen gas; molecules
are dissociated and excited atoms emit light
spectrum has discrete lines
[Figure: spectrum of atomic hydrogen, Atkins 9th ed., Fig. 9.1]
PChem II
4.1
lines
5. Multielectron Atoms
He atom (or He-like atoms)
Z e2
2 2
Z e2
e2
2 2
1
2
+
H =
2m e
4 0 r 1 2m e
4 0r 2 4 0r 12
r i = distance of i-th electron from nucleus, r 12 = distance between the two electrons
assumed stationary nucleus
e2
: electron repulsion
Mathematical Formulae for Physical Chemistry II
sin2 + cos2 = 1,
tan =
sin
cos
cos 2 = cos2 sin2
sin 2 = 2 sin cos ,
sin( + ) = sin cos + cos sin ,
sin + sin = 2 sin
+
cos
2
2
sin sin = 2 cos
cos( + ) = cos cos sin sin
+
sin
2
2
cos + cos = 2 cos
cos
Final
Spring 2013
Physical Chemistry II
Constants
c = 2.998 108 m s1
h = 6.626 10
34
Js
= 1.055 10
34
speed of light
Js
Planck constant
k = 1.381 1023 J K1
Boltzmann constant
hc /k = 1.4388 cm K
e = 1.6022 1019 C
elementary charge
N A = 6.022 1023 mol1
A