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ME 200 – Thermodynamics I
Name:
Naik
Sameer
Fall 2009
(Last)
(First)
Thermo Number:
1000
CIRCLE YOUR LECTURE BELOW
Div. 1 – 8:30 am
Div. 2 – 10:30 am
Div. 3 – 1:30 pm
Naik
Lucht
Mongia
Div. 4 – 3:30 pm
Div. 5 – 7:30 am
Kim
Hess
EXAM 2
INSTRUCTIONS
•
This is a
closed book and closed notes exam
.
Answer as many questions as you can in the
allotted time.
Do not hesitate to ask questions if you do not understand a problem statement.
For your own benefit, please write clearly and legibly.
Maximum credit for each problem is
indicated below. To receive full credit for a problem, you must follow instructions, show all
work, and write the answers in the appropriate boxes.
•
For Problems 1 and 2, significant credit will be given if you start with the basic equation(s), list
all assumption(s), and illustrate the method by which you propose to solve the problem
correctly.
Some parts of Problem 3 will be given no partial credit.
•
Do not write on the back of any page.
Material on the back of a page may not be graded.
If
additional pages are needed, ask for additional pages.
Insert the extra pages in their proper order
and staple them to the exam.
•
The use of PDAs, Blackberrytype devices, cell phones, laptop computers, or any other
sources of communication (wireless or otherwise) are strictly prohibited during
examinations.
Doing so is cheating. If you bring a cell phone or other
communication
devices
to the examination, they
must be turned off
prior to the start of the exam,
placed in
your backpack, and the backpack
stored below your seat
, and only picked up as you
leave the examination room for the final time. They are not to be turned on again until after
you have exited the examination room.
Otherwise it will be considered a form of cheating
and treated as such.
Problem
Possible
Score
1
20
2
40
3
40
Total
100
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View Full DocumentName:
Naik
Sameer
Thermo No:
1000
(Last)
(First)
Problem 1: (20 points)
Given:
A rigid, insulated tank having total volume of 2 m
3
is initially divided into two equal chambers
as shown below.
Chamber A contains 2 kg of liquid A which has specific heat of 2.0 kJ/kgK
and is initially at a temperature of 100
°
C and a pressure of 1 atm. Chamber B contains 3 kg of
liquid B which has specific heat of 5.0 kJ/kgK and is initially at a temperature of 50
°
C and a
pressure of 1 atm.
The partition dividing the two liquids is removed and the liquids are allowed
to come to an equilibrium temperature during a constant pressure process at 1 atm.
Assume that
the two liquids completely mix in each other.
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 Summer '08
 GAL

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