A Brass Rod with a Length of 20

A brass rod with a length of 20.0 cm is placed side by side with an aluminum rod with a length of 20.0 cm, and this system is placed between a hot temperature of 150 °C and a cold temperature of −10.0 °C. The thermal conductivities of the brass and the aluminum are 100 W/m °C and 230 W/m °C, respectively. The rods have the same cross-sectional area of 20.0 cm². What is the rate of heat flow from the hot temperature to the cold temperature?

A) 683 W
B) 528 W
C) 52.8 W
D) 68.3 W

Correct Answer:

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