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A bar of aluminum (coefficient of linear expansion 24E-6 1/K) of 55 cm and an initial temperature of 20 C, increases its temperature to 100 C. What is the length of the bar at this temperature?
Solution with FisicaLab
Select the Thermodynamics group and, inside this, the Calorimetry and gases module. Erase the content of the chalkboard. And add one element Linear expansion as show the image below:
To this element, we have:
55 @ cm
Lf @ cm
20 @ cm
100 @ cm
Now click in the icon Solve to get the answer:
Lf = 55.106 cm ; Status = success.