In an Experiment to Determine the Thermal Conductivity of a Bar

question 3

Multiple Choice

In an experiment to determine the thermal conductivity of a bar of a new alloy,one end of the bar is maintained at 0.0 °C and the other end at 100.0 °C.The bar has a cross-sectional area of 1.0 cm² and a length of 15 cm.If the rate of heat conduction through the bar is 34 W,what is the thermal conductivity of the bar?

• A)34 W/(m · C°)
• B)360 W/(m · C°)
• C)160 W/(m · C°)
• D)510 W/(m · C°)
• E)0.029 W/(m · C°)

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Definitions:

Cognitive Dissonance

A psychological theory which proposes that individuals experience discomfort when holding two or more conflicting cognitions, leading them to change their beliefs, attitudes, or actions to reduce the discomfort.

Implicit Prejudice

Unconscious or automatic negative evaluations or beliefs about a group or its members.

Explicit Prejudice

Openly expressed negative attitudes or beliefs toward a group or its members based on their perceived characteristics.

Group Polarization

The phenomenon where discussions within a group lead to the adoption of more extreme positions or attitudes than the initial inclinations of its members.