November 2015 Statement
Open Date: 10/06/2015 Closing Date: 11/04/2015
Page 1 of 3
Account: 4037 8400 4582 6458
U.S. Bank Cash Rewards Visa Card
PHUONG B NGUYEN
Minimum Payment Due
Payment Due Date
Introduction to Entropy and the 2nd Law
Previously we studied the time-average behavior of a Lennard-Jones fluid
using molecular dynamics.
This exercise illustrated how energetic interactions among molecules
leads to complex spatial distributions (includi
Two Component Vapor-Liquid Equilibrium
Consider the separation of benzene (C6H6) and toluene (C6H5CH3) by
flash distillation. A 50-50 mixture (by mole) is heated to 80C, passed
through a valve, and allowed to reach equilibrium at lower pressure*.
What is temperature?
We started by considering the importance of temperature in determining
thermal equilibrium. A substance () with higher temperature tend to
transfer heat to another substance () with lower temperature, until
Two Phases: Liquid and Gas at Low Pressure
Last time, we examined n moles of water contained in a piston:
With one phase (water):
Thus we can set temperature
and also arbitrarily vary pressure
by changing available volume.