Two bars, A and B, each of length 2.0 m and cross sectional area 1.0 m², are placed end to end as shown in the figure. The thermal conductivities of the bars are
k_A = 439 J/(s . m . K) and k_B = 887 J/(s . m . K) , respectively. The left end of bar A is maintained at 373 K while the right end of B is maintained at 273 K.
-What is the rate of heat transfer through this combination?

Question

Two bars, A and B, each of length 2.0 m and cross sectional area 1.0 m², are placed end to end as shown in the figure.

Two bars, A and B, each of length 2.0 m and cross sectional area 1.0 m<sup>2</sup>, are placed end to end as shown in the figure. The thermal conductivities of the bars are k<sub>A</sub> = 439 J/(s . m . K) and k<sub>B</sub> = 887 J/(s . m . K) , respectively. The left end of bar A is maintained at 373 K while the right end of B is maintained at 273 K. -What is the rate of heat transfer through this combination? A) 3.7 × 10<sup>3</sup> J/s B) 6.4 × 10<sup>3</sup> J/s C) 8.8 × 10<sup>3</sup> J/s D) 1.5 × 10<sup>4</sup> J/s E) 2.2 × 10<sup>4</sup> J/s

The thermal conductivities of the bars are
k_A = 439 J/(s . m . K) and k_B = 887 J/(s . m . K) , respectively. The left end of bar A is maintained at 373 K while the right end of B is maintained at 273 K.
-What is the rate of heat transfer through this combination?

Quizplus · Accepted Answer

The Answer of Two bars, A and B, each of length 2.0 m and cross sectional area 1.0 m 2 , are placed end to end as shown in the figure. The thermal conductivities of the bars are k A = 439 J/(s . m . K) and k B = 887 J/(s . m . K), respectively. The left end of bar A is maintained at 373 K while the right end of B is maintained at 273 K. -What is the rate of heat transfer through this combination? A)3.7 × 10³ J/s B)6.4 × 10³ J/s C)8.8 × 10³ J/s D)1.5 × 10⁴ J/s E)2.2 × 10⁴ J/s

Two Bars, a and B, Each of Length 2