Lecture 10

Lecture 10 - Chem 338 Lecture 10 The Second Law 1. The...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 338 C h em 3 3 8 L e c t u r e 1 0 The Second Law 1. The Arrow of time: 2. Entropy: dS = dq rev /T 3. The Second Law: a. b. Δ S(Universe) rev = 0 c. Δ S(Universe) irr > 0 4. Interpretation: S = k B ln W 5. Calculation: 0 dS = v rev Sd S Δ=
Background image of page 1

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

View Full DocumentRight Arrow Icon
Chem 338
Background image of page 2
Chem 338
Background image of page 3

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

View Full DocumentRight Arrow Icon
Chem 338 2. Entropy: dS dq rev /T 3. The Second Law: a. b. Δ S(Universe) rev = 0 c. Δ S(Universe) irr > 0 0 dS = v
Background image of page 4
Chem 338
Background image of page 5

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

View Full DocumentRight Arrow Icon
Chem 338 Boltzmann: S = k B ln Ω
Background image of page 6
Chem 338
Background image of page 7

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

View Full DocumentRight Arrow Icon
Chem 338
Background image of page 8
Chem 338
Background image of page 9

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

View Full DocumentRight Arrow Icon
Chem 338
Background image of page 10
Chem 338 First Law: Calculate 1 st , 2 nd , 3 rd . Path Type q w Δ U A dT =0 2 1 V Uw R T V ⎛⎞ Δ− = ⎜⎟ ⎝⎠ ln 2 1 2 1 V V V PdV RT V −= ln 0 B dq =0 0 2 1 V V PdV 2 1 T V T CdT C dV =0 1 2 T V T 0 1 2 T V T B+C 1 2 T V T 2 1 T V T wUq C d T =− = 0 0 dU = v
Background image of page 11

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

View Full DocumentRight Arrow Icon
Chem 338 First Law: Calculate 1 st , 2 nd , 3 rd . Path Type q w Δ U A dT =0 2 1 V Uw R T V ⎛⎞ Δ− = ⎜⎟ ⎝⎠ ln 2 1 2 1 V V V PdV RT V −= ln 0 B+C 1 2 T V T CdT 2 1 T V T wUq C d T =− = 0 D dP =0 () 3 1 12 1 T V T CdT PV V +− -P 1 ( V 2 - V 1 ) 3 1 T V T E dV =0 1 3 T V T 0 1 3 T V T
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 18

Lecture 10 - Chem 338 Lecture 10 The Second Law 1. The...

This preview shows document pages 1 - 13. Sign up to view the full document.

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