Week 2 Lecture Notes

Week 2 Lecture Notes - Announcements - Finish Reading...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Announcements - Finish Reading Chapter 6 (if you have not done so), Begin reading Ch.7, sections 7.1 - 7.3 - Finish the Ch. 6 assigned problems: 1, 5, 10, 13, 17, 23, 27, 29, 32, 38, 46, 50, 61, 65, 72, 73, 80, 85, 103, 114 - Attend SECTION today & tomorrow! Sections D09 and C09 are open for enrollment (currently half-filled). Helproom opens at 4 pm today! Prof. Crowell’s Office Hours: Mon 1-3 PM, Tues 12-2 PM (3221 Urey Hall) - Continue to visit the Course Website on WebCT for updates (e.g. all of Ch.6 handouts available). - Buy a Remote Transmitter from the UCSD Bookstore if you do not already have one. We will be using the old style “IR” clickers. We will begin using them in class on Wednesday. Ro-vibrational Spectroscopy E total = E rot + E vib The rotational levels are closely spaced compared to the vibrational levels (with a separation of 2 hcB(J+1) ). For CO, the rotational constant B = 1.93 cm -1 , E/hc = BJ(J+1), and kT = 69.4 cm -1 at 100K. Hence, several rotational levels are populated even at 100K, and increasingly more as the temperature is raised.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Δ U (I 2 ) = Δ U translation + Δ U rotation + … Δ U vibration Δ U (I 2 ) = 3/2 nR Δ T + nR Δ T + … nR Δ T C V = Δ U / Δ T C V,m = Δ U / (n Δ T) C V,m = C V,m (trans) + C V,m (rot) + … C V,m (vib) C V,m = 3/2 R + R + … R C V,m (2 I atoms) = 2 C V,m (translation, I atom) = 2 (3/2 R) = 3 R Heat Capacity for Atoms and Molecules N = # of atoms
Background image of page 2
Types of Processes Isothermal = Constant Temperature with corresponding changes in Pressure, Volume, and with Heat added or removed. Isobaric
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/03/2008 for the course CHEM 6B taught by Professor Crowell during the Winter '08 term at UCSD.

Page1 / 11

Week 2 Lecture Notes - Announcements - Finish Reading...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online