Department of Chemistry and Biochemistry
The University
of Delaware
Physical Chemistry II, CHEM 444
Texts
Required
- Thomas Engel and Philip Reid,
Physical Chemistry (2nd Ed.), Benjamin Cummings, San
Francisco, 2006.
- Thomas Engel and Philip Reid,
Student’s Solutions Manual for
Physical Chemistry, Benjamin Cummings, San Francisco, 2006.
- C. Dybowski and A. Teplyakov,Essential
Data and Equations for a Course in Physical Chemistry, Pearson, New
York, 2009.
Optional
- J. H. Noggle,
Physical Chemistry Using Mathcad, Pike Creek, Newark, 1997.
Mathcad
Usage
This course makes use of Mathcad (Mathsoft
). This program can make numerical calculations
easier if you use it wisely. You may purchase your own copy (It is
available in PC and MAC versions.) through the bookstore or directly from Mathsoft. It is NOT necessary to use this program to
succeed in this course. It is another tool that may help you solve
problems. Note that we allow the student to answer questions on the exams by
providing a complete, total, correct Mathcad program, with an explanation
of the steps. See the policy on exams and quizzes.
Quizzes are given weekly, as indicated on the schedule.
Two midterm exams are given during the
semester. Each exam's coverage will be announced in class during the week
preceding the exam. These are given on Saturday mornings (listed in the
Assignment page) so that students have more than sufficient time to finish
these exams.
The final examination will be a three-hour
comprehensive exam.
For numerical calculations, full credit is given for
a complete set-up of a problem. A complete set-up gives the final formula
used (with an indication of how it is derived from equations in the
Handbook). All numbers must be properly plugged in with correct
units. This is the criterion for a full, complete set-up: the grader need
only perform a simple calculation with a calculator based on your bottom-line
equation to obtain the correct numerical answer. Since many equations are
given in the Handbook, NO credit is given for just writing down an
equation. You must also give the correct, REASONABLE units of the parameter
being calculated. [For example, ergs/cm3 is not an appropriate
reasonable unit of pressure.]
A complete, viable MathCad
program, together with an explanation of everything indicated, will receive
full credit for any problem. The criterion is this: if the grader were to type,
in the order you write it, all the Mathcad steps on your paper and then hit
"carriage return", the correct answer must appear. This means
you must remember to include ALL steps, just as you would in the set-up above,
except in appropriate Mathcad syntax.
Writing a proper Mathcad program is no shorter than actually setting up
a problem the usual way, however there is the
advantage of learning how to program properly.
Of course, we emphasize that a correct answer is
welcome. Obtaining the final numerical answer has advantages; it will
help you eliminate various errors originating from unit conversions, mix up of
formulas, and mistakes of logic. It is a good practice (and you get lots
of partial credit) to derive formulas using symbols for all quantities. Solve
for your unknown and below this solved equation write the same equation with
numbers and their units for all the symbols.
Answers without units are wrong. In an exam or a
quiz, pause at the point of choosing a formula to review your choice. This is
the crucial part of problem solving.
All answers must be fully justified by the work shown
on the exam. Merely writing down the answer, whether from memory, intuition, or
"peeking" will not cut it. No matter how
much a student may state it (and truly believe it),
knowing something in one's head or heart does not count; only what is on the
paper counts.
Material for
quizzes and examinations:
If you feel your exam or quiz was not
graded correctly, bring this to the attention of the grader no later than 7
days after it is returned to you. The longer you wait, the less likely we will
make a change in the grade. No change in grading will be made if the exam
contains erasures or has in any way been altered since its return.
Homework problems are suggested in
the assignment sheet. Homework is not graded and does not have to be
turned in. However, you are strongly advised to work all problems
and keep current in the course. Do homework problems at exam speed with
the Handbook. You should expect to put at least nine
hours per week outside of class in this course on homework. You are encouraged
to work and discuss problems together, but remember that your only help on the
exams or quizzes is your own knowledge. Make sure you understand every
step and can solve similar (not analogous) problems; do not just follow
along as someone else solves a problem.
You are responsible for knowing all
material taught in lectures, as well as the assigned readings, including any
you miss by an absence from class. Most students find regular class
attendance essential to passing the course. If you must be absent for a
valid reason on the day of a quiz or exam, contact the instructor before the
absence occurs if possible, but within a week of any quiz or exam that is affected,
and present your reason for the absence.
If reasonable (See below), you may be granted an excused absence.
[Only the instructor of your section may give you an excused absence, and that
is his discretion.] The default is an unexcused absence if a paper is not
received from a student. It is the responsibility of the student to
contact the instructor about absences and to make sure all papers have been
properly recorded; if in doubt, talk to the instructor.
There are no make-up exams or quizzes
in this course. Generally quizzes are not given early. Quizzes and exams
missed with an unexcused absence are given a grade of "0".
Quizzes missed because of an excused absence do not count towards the quiz
average, but missing them makes each of the other quizzes count a slightly
higher percentage of the quiz average. If you miss a midterm examination
because of an excused absence, an equivalent grade is substituted for it based
on that part of the final exam covering the same material. Do not miss exams and quizzes needlessly; it has a significant negative
effect on your grade.
The following are examples of valid excuses for
absence: (1) required attendance at a university-sanctioned event (band,
sports, etc.), (2) representation of the university at regional, national or
international meetings, (3) observance of religious holidays, (4) death in the
immediate family; (5) personal illness.
Desire to go home early for the weekend or to leave for a special
occasion are, unfortunately, NOT valid excuses for missing a quiz or exam; the
university calendar is quite explicit, and you are expected to plan your time
to be at the university for all classes.
Grade Weights:
Note: In addition to these materials, the honors
section receives a grade based on special projects and class participation,
such that the work on quizzes and the special projects and class participation
are equal to 12.5% of the final grade.
Grade Cutoffs: (in percentages of total points at end of semester)
Note: These are the percentages
for the lowest grade in the category; these are for the "unsigned"
grades. No "curve" is used in this course, nor is there any
predetermined quota for any grade: we shall (happily) give all A's or
(unhappily) all F's, if the grades are earned. If we feel that an exam was
harder than we anticipated these cutoffs may be lowered slightly.
{Numbers in
brackets indicate the departmental goals.}
A student who successfully completes
CHEM 444 should be able to do the following:
1. Understand the nature of matter at
the atomic and molecular level.
2. Apply theoretical principles and
mathematical analysis to the solution of problems. {1}
3. Be able
to explain clearly reasoning in written examinations. {10}
- This is probably the hardest course you have
taken or will ever take, and extensive, consistent work is required to do
well in it. Expect to spend 10 to
20 hours per week outside of class studying. We rely on Stanley
Kubrick, the film director, (as quoted by Matthew Modine
in the New York Times) to tell you what must be done to succeed, and how
not to: "People don't do their homework." He
then goes on to say he has to waste time because "people are not
learning what their job is supposed to be" because they haven't done
their homework beforehand. Learning requires practice that can only
be done by the learner alone, by careful reading, re-reading, and working
of homework; it is as true in learning physical chemistry as it is in any
pursuit. Instructors and friends
can help, but the student must put in the effort to gain the information
and make the connections so necessary to being an educated person.
- Read assignments before lecture; reread
them afterwards. Reading scientific
writing is SLOW; one cannot scan and get the information, as one does in
reading a novel. It requires
reading a sentence and then thinking about the meaning, then reading
further, then going back to make the intellectual
connections to what one already knows.
It is slow, and sometimes boring; but proper study brings great
rewards.
- Attend class regularly; do not fall behind.
- Do problems! Each assigned problem illustrates
an important concept -- careful rereading and study of the text is usually
required to work problems. You cannot learn by reading or copying
problem solutions any more than you can learn to swim or play the
piano by watching someone else. Do all the problems assigned; then work
some of your own choosing from the others in the chapter!
- Timing is important. Attempt problems
immediately after covering the material; if you can't do them, reread the
material. If you still can't do a problem, seek help immediately. This is
a time-consuming process, but is important for the learning process.
You CANNOT learn physical chemistry the night before an examination.
- Seek help immediately if you cannot work a
problem; the instructors and teaching assistants can help, but only if
they are aware of the problem.
- Study all text examples carefully,
filling in the missing steps and checking units at all stages. In some
cases it will be helpful to work them out using Mathcad.
- Consider problems to be diagnostic: if you can't
do them, you have missed something important; copying from someone or a
book will not help.
- Students are reminded that, by faculty senate
rule, the minimum penalty for cheating is an F for the entire course. Any
incident of cheating or suspected cheating will be reported to university
authorities for appropriate action.
Return to C444
Copyright
University of Delaware, 1996-2011.
Last Updated: January 28, 2011
This page maintained by Andrew. V. Teplyakov, Sandeep Patel, and Cecil
Dybowski.
URL of this document:
http://www.udel.edu/pchem/C444/C444pol.htm