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Exam
Name___________________________________
MULTIPLE CHOICE.
Choose the one alternative that best completes the statement or answers the question.
1) A laboratory experiment is to be run at 82.0 K. Express this temperature in Celsius to the nearest
degree.
A) 455
e
C
B) 114
e
C
C) 355
e
C
D) 191
e
C
1)
2) A composite rectangular solid has material 1 on the bottom and material 2 on the top. The
temperature of the bottom is 346.0
e
C and the temperature of the top is 298.0
e
C. Material 1 has a
thermal resistance of .15 K/W, and material 2 has a thermal resistance of .40 K/W. Find the
heatflow rate. Assume the thickness is small compared with the surface area, so heat loss at the
edges can be neglected.
A) 1100 W
B) 190 W
C) 2,900 W
D) 87 W
2)
3) A person reading a European newspaper finds that the low temperature the night before in
Stockholm was 12
e
C. What is the equivalent temperature in degrees Fahrenheit?
A) 53.6
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 Fall '05
 wurthmeir

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