Consider two cylindrical rods that are identical in size and shape, but are made of different materials. The rods are placed between two walls that are maintained at different temperatures. The direction of heat conduction is from the warmer wall (left) to the cooler wall (right).

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Chapter1: Units, Trigonometry. And Vectors
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Consider two cylindrical rods that are identical in
size and shape, but are made of different
materials. The rods are placed between two walls
that are maintained at different temperatures. The
direction of heat conduction is from the warmer
wall (left) to the cooler wall (right).
k1
= 205 W/(m-K)
Tw
TC
k2 = 109 W/(m-K)
(1)
%3D
A = A2 = A
d
k2
Tw
Tc
(II)
Transcribed Image Text:Consider two cylindrical rods that are identical in size and shape, but are made of different materials. The rods are placed between two walls that are maintained at different temperatures. The direction of heat conduction is from the warmer wall (left) to the cooler wall (right). k1 = 205 W/(m-K) Tw TC k2 = 109 W/(m-K) (1) %3D A = A2 = A d k2 Tw Tc (II)
If the temperature difference
between the left wall and the
right wall is 1OO K, A = 0.0004
%3D
m?, and d = .4000 m, what is
the heat current in the second
rod arrangement (II)? *
4.80 J/s
7.12 J/s
9.60 J/s
15.7 J/s
23.3 J/s
31.4 J/s
None of the above.
Transcribed Image Text:If the temperature difference between the left wall and the right wall is 1OO K, A = 0.0004 %3D m?, and d = .4000 m, what is the heat current in the second rod arrangement (II)? * 4.80 J/s 7.12 J/s 9.60 J/s 15.7 J/s 23.3 J/s 31.4 J/s None of the above.
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