Transcript AL 17.1 UPS XPS MV=mv H2 Dissoc Variation

http://forum.eeeuser.com/viewtopic.php?id=61689
MIchaelson’s measurement of the velocity of light
http://www.hec.utah.edu/anions/
PE Spectra N2 NO O2
Photoelectron Spectrometers
Photoelectron Spectroscopy Theory
Halogen Ionization pot./eV Vibration frequency/cm−1 Change in bondlength/Å
F2
15.7
1065(894)
-0.10
F2
18.4
500
+0.32
Cl2
11.5
645(557)
-0.10
Cl2
14.0
323
+0.37
Br2
10.5
355(321)
-0.09
Br2
12.4
187
+0.35
Br2
14.3
Not resolved
Not determined
I2
9.2
236(214)
-0.08
I2
10.7
125
+0.26
I2
12.7
Not resolved
Not determined
http://www.uky.edu/~holler/orbitals/co/co.html
http://www.uky.edu/~holler/orbitals/co/co.html
Ecalc ≥ Eo
Variation Principle
Harry Kroto 2004
H2 Dissociation Energy GH&M K&W
Raman Spectrum
The Born-Oppenheimer Separation
H = E
H = Hel + Hvib + Hrot+ …
Harry Kroto 2004
The Born-Oppenheimer Separation
H = E
H = Hel + Hvib + Hrot+ …
 = el vib rot …
Harry Kroto 2004
The Born-Oppenheimer Separation
H = E
H = Hel + Hvib + Hrot+ …
 = el vib rot …
 = i  i
Harry Kroto 2004
The Born-Oppenheimer Separation
H = E
H = Hel + Hvib + Hrot+ …
 = el vib rot …
 = i  i
E = Eel + Evib + Erot +…
Harry Kroto 2004
The Born-Oppenheimer Separation
H = E
H = Hel + Hvib + Hrot+ …
 = el vib rot …
E = Eel + Evib + Erot +…
 = i  i
E= i Ei
Harry Kroto 2004
The Born-Oppenheimer Separation
H = E
H = Hel + Hvib + Hrot+ …
 = el vib rot ns …
E = Eel + Evib + Erot + Ens…
 = i  i
E= i Ei
Nuclear Spin
Harry Kroto 2004
αα
αβ
βα
ββ
Spin
Hydrogen Bonding - Water
Ammonia Inversion
Ammonia Potential
Haber Bosch Process
The adjective kinetic has its roots in the Greek word κίνησις (kinesis)
meaning motion, which is the same root as in the word cinema,
referring to motion pictures.
The principle in classical mechanics that E ∝ mv² was first developed
by Gottfried Leibniz and Johann Bernoulli, who described kinetic
energy as the living force, vis viva. Willem 's Gravesande of the
Netherlands provided experimental evidence of this relationship. By
dropping weights from different heights into a block of clay, 's
Gravesande determined that their penetration depth was proportional
to the square of their impact speed. Émilie du Châtelet recognized
the implications of the experiment and published an explanation.[3]
The terms kinetic energy and work in their present scientific
meanings date back to the mid-19th century. Early understandings of
these ideas can be attributed to Gaspard-Gustave Coriolis, who in
1829 published the paper titled Du Calcul de l'Effet des Machines
outlining the mathematics of kinetic energy. William Thomson, later
Lord Kelvin, is given the credit for coining the term "kinetic energy" c.
1849–51.[4][5]
Willem 's Gravesande
Born in 's-Hertogenbosch, he studied law in Leiden and wrote a thesis on
suicide. He was praised by John Bernoulli[1] when he published his book
Essai de perspective. In 1715, he visited London and King George I. He
became a member of the Royal Society. In 1717 he became professor in
physics and astronomy in Leiden, and introduced the works of his friend
Newton in the Netherlands. He opposed fatalists like Hobbes and Spinoza.
In 1724, Peter the Great offered him a job in Saint Petersburg, but Willem
Jacob did not accept.
His main work is Physices elementa mathematica, experimentis confirmata,
sive introductio ad philosophiam Newtonianam or Mathematical Elements of
Natural Philosophy, Confirm'd by Experiments (Leiden 1720), in which he
laid the foundations for teaching physics. Voltaire and Albrecht von Haller
were in his audience, Frederic the Great invited him in 1737 to come to
Berlin.
His chief contribution to physics involved an experiment in which brass balls
were dropped with varying velocity onto a soft clay surface. His results were
that a ball with twice the velocity of another would leave an indentation four
times as deep, that three times the velocity yielded nine times the depth,
and so on. He shared these results with Émilie du Châtelet, who
subsequently corrected Newton's formula E = mv to E = mv2. (Note that
though we now add a factor of 1/2 to this formula to make it work with
coherent systems of units, the formula as expressed is correct if you choose
units to fit it.)
Hydrogen
Harry Kroto 2004
Hydrogen History
Problem 25th Feb 2010
Write about a page on Boyle’s Law
David
Paul Wunderlich and Karin Szekessy
Zeppelin
Hydrogen Summary