Materials 100B Homework #5 - Solution Set
Problem 1
Dislocations must have a Burgers vector that connects one crystal lattice site to another. There
are therefore many possible magnitudes and directions for b. However, we observe (by
experiment) that b al

Quiz #1 Section 0101
Q1. A long straight wire is bent as shown in the figure
a) Find the direction of the magnetic field at (the center of
the arc)
b) Find | at point due to the straight parts of the wire only
c) Calculate | at point due to the arc only
d

Quiz #2 Solutions Section 101
Question 1 (11 Points)
A strong magnet is placed under a
horizontal conducting ring of radius =
10.0 cm that carries current = 10.0A as
shown in the figure. If the magnetic field
has a magnitude 0.1 T and makes an
angle = 30

Quiz #4 Section 101 / Name:
Question 1 (12 Points)
Electrons (rest energy = 0.511 MeV) are accelerated to a total energy
of 20.0 GeV in a 3.00-km-long particle accelerator.
a) Calculate the value of the factor
b) Find the accelerator length in the electr

PROBLEM SET 4
1. Problem 1
a)
A crystal structure is composed of a basis that is repeated in a Bravais lattice. For this structure
the basis shown in part (b) is repeated in a primative cubic lattice.
b)
Figure 1
c)
For this unit cell there are 81 8 = 1 B

Quiz #5
Question 1 (10 Points)
A quantum particle in an infinite square well has the wave function
2
2 () = sin
2
for 0 and zero otherwise.
(a) Determine the expectation value of .
(b) Determine the probability of finding the particle in the range
0.24 0.

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Chapter 4: Heat Effects
Chunsheng Wang
Department of Chemical & Biomolecular Engineering
University of Maryland
cswang.umd.edu
Ideal Gas: PV=RT
For ig, U is a function of T only.
U=U(T,V) U=igU(T)
For ig, H is a function of T only.
HU+PV=igU(T)+RT=H(T)
CV

CHBE301 Thermodynamics
Chunsheng Wang, Department of Chemical &
Biomolecular Engineering
University of Maryland
Chapter 2
First Law of Thermodynamics
The First Law for a closed system
Closed = no inlet stream, no outlet stream (material balance automatica

CHBE301 Thermodynamics
Chunsheng Wang
Department of Chemical & Biomolecular Engineering
University of Maryland
Chapter 3
Volumetric Properties
of Pure Fluids
Ideal Gas: PV=RT
For ig, U is a function of T only.
U=U(T,V) U=igU(T)
For ig, H is a function of

Chapter 5
The Second Law of
Thermodynamics
(Entropy)
Second Law
Statement 1. No process is possible which consists solely in the
transfer of heat from one temperature level to a higher one.
Heat transfer: Heat flows from hot to cold.
(Temperature gradien

CHBE 301Chemical and Biomolecular Engineering Thermodynamics I
Fall 2015
Meeting Location and Times:
Two lectures per week: Tuesday and Thursday 3:00 to 4:15 at CHE 2110
One discussion per week (lead by UTFs): Thursday 11:00 to 11:50 at CHE 2108
Instructo

CHBE301 Thermodynamics
Chunsheng Wang
Department of Chemical & Biomolecular Engineering
University of Maryland
Chapter 6
Thermodynamic Properties
of Fluids
(Equations Galore!)
Introduce Different Energy Terms
U = Q + W internal energy for homogeneous flui

H for single or mixed materials
T
dH CP dT Q H C P dT
TT0
C
ICPH (T0 , T , A, B, C , D ) P dT
T0 R
H R * ICPH (T 0, T ,.)
CP H
1
MCPH (T0 , T , A, B, C , D )
R
T T0
Integrated CP for H calculation
CP
T0 R dT
T
Mean CP for H calculation
H R * MCPH (T0 ,

CHBE310, Fall 2015, Middle Term Exam 1
Tuesday, 20151013, 3:00 to 4:45 pm (75 min)
Total points: 100;
Q1. Multiple Choice (20 points; only one answer is the best; 2 points each
question)
1. Compressibility factor Z.
Compressibility factor for an ideal gas

CHBE301-Homework 7 DUE 12/10/15 at 11 am (in Discussion)
Show all work required to arrive at your final answer. NO WORK, NO CREDIT! Write
symbolic equations before substituting values in. For any iterative procedures, clearly show the
equation/process bei

CHBE301-Homework 2
DUE 9/29/15
Show all work required to arrive at final answer. NO WORK, NO CREDIT! Write symbolic
equations before substituting values in. For any iterative procedures, clearly show the
equation/process being used and initial guess used.

CHBE301 HW #4 (DUE OCT. 29th in Discussion)
Instructions: Show all work required to arrive at your final answer. NO WORK, NO
CREDIT! Write symbolic equations before substituting values in. For any iterative procedures,
clearly show the equation/process be

CHBE301-Homework 3
DUE 10/13/15
Show all work required to arrive at your final answer. NO WORK, NO CREDIT! Write
symbolic equations before substituting values in. For any iterative procedures, clearly show the
equation/process being used and initial guess

CHBE301-Homework 5
DUE 11/10/15
Show all work required to arrive at your final answer. NO WORK, NO CREDIT! Write
symbolic equations before substituting values in. For any iterative procedures, clearly show the
equation/process being used and initial guess

Answers to Practice Problems
4.1: a) 470.07 kJ b) 1.942*10^3 kJ
4.5: Ha.
4.6: Ha.
4.13: B = -1369.5 cm^3/mol
4.14: a) 1.372*10^3 b) 1.536*10^3 c) 1.822*10^3
4.15: x = 0.498
4.16: a) delH298 = 220.8 kJ/mol b) 88.5 kJ/mol c) -12.3 kJ/mol d) -198.6 kJ/mol e)

CHBE301-Homework 6 DUE 11/24/15
Show all work required to arrive at your final answer. NO WORK, NO CREDIT! Write
symbolic equations before substituting values in. For any iterative procedures, clearly show the
equation/process being used and initial guess

CHBE301 Homework 1
DUE 9/15
1. Consider a system in equilibrium with two phases and one chemical species.
a. How many degrees of freedom exist? What if there was one phase and two chemical
species?
b. What is the definition of an intensive property? How d