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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