In an Experiment to Determine the Thermal Conductivity of a Bar

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°)