Question

14) A 50 m long aluminium pipe is placed adjacent to a steel pipe 50.01m long at 20°C.
At what temperature will the aluminium pipe be 25mm longer than the steel pipe?
(Asteel=12 x 10-6 /°C, Qal=23 x 10-6 /°C)
a. 63.66 °C
b. 65.47 °C
c. 45.47 °C
d. 83.66 °C​

Answer 1

Answer:

See the above Hint.

I hope that it will help.

Thanks.

Answer 2

Concept introduction:

A measure of the average kinetic energy per atom or molecule in the system, temperature is a physical term that reflects how hot stuff is.

Explanation:

We have to answer the question.

A question has been given to us.

In this case, change in length $=dl=0.0024m$

change in temperature $=dt=77−27=50$ degree centigrade

initial length $=2 m$

Putting these values in$\alpha = (dt*l)$

$dl$ , we get,

$\alpha = (50)*(2)0.0024\alpha =24*10 / C$

Final answer:

The final answer of the question is $\alpha = (50)*(2)0.0024\alpha =24*10 / C$.

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