Given a conduction time of 60 seconds, what is the ratio of the total heat flow in configuration (1) to the total heat flow in configuration (II)?

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Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter11: Energy In Thermal Processes
Section: Chapter Questions
Problem 15P: What mass of water at 25.0C must be allowed to conic to thermal equilibrium with a 1.85-kg cube of...
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Given a conduction time of 60
seconds, what is the ratio of
the total heat flow in
configuration (1) to the total
heat flow in configuration (II)?
6.54
4.41
3.27
2.00
1.35
0.61
0.23
0.31
0.50
O None of the above.
Transcribed Image Text:Given a conduction time of 60 seconds, what is the ratio of the total heat flow in configuration (1) to the total heat flow in configuration (II)? 6.54 4.41 3.27 2.00 1.35 0.61 0.23 0.31 0.50 O None of the above.
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
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 Tw Tc (II)
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