A Heat-Conducting Rod That Is Wrapped in Insulation Is Constructed $\mathrm { m } ^ { 2 }$

question 15

Multiple Choice

A heat-conducting rod that is wrapped in insulation is constructed with a 0.15-m length of alloy A and a 0.40-m length of alloy B , joined end-to-end. Both pieces have cross-sectional areas of 0.0020 $\mathrm { m } ^ { 2 }$ The thermal conductivity of alloy B is known to be 1.8 times as great as that for alloy A. The end of the rod in alloy A is maintained at a temperature of $10 ^ { \circ } \mathrm { C }$ and the other end of the rod is maintained at an unknown temperature. When steady state flow has been established, the temperature at the junction of the alloys is measured to be $40 ^ { \circ } \mathrm { C } ,$ and the rate of heat flow in the rod is measured at 56 W. What is the temperature of the end of the rod in alloy B?

• A) \(80 ^ { \circ } \mathrm { C }\)
• B) \(84 ^ { \circ } \mathrm { C }\)
• C) \(96 ^ { \circ } \mathrm { C }\)
• D) \(92 ^ { \circ } \mathrm { C }\)
• E) \(88 ^ { \circ } \mathrm { C }\)

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Definitions:

Schizophrenic Disorders

A group of severe mental disorders characterized by disordered thoughts, perceptions, and emotions, leading to detachment from reality.

Maladaptive Behaviour

Maladaptive Behaviour is any type of behavior that inhibits an individual's ability to adjust healthily to particular situations.

Expressed Emotion

Expressed Emotion is a measure of the family environment that is based on how much criticism, hostility, and emotional over-involvement are directed at the patient by family members.

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