Question

The volume of copper wire increase on heating​

Answer 1

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Thermal expansion is the tendency of matter to change in volume in response to a change in temperature, through heat transfer. This property is measured by the thermal linear expansion coefficient; defined as the fractional change in length of a particular material for each degree of temperature change. The thermal linear coefficients of expansion for copper per degree centigrade is: 17∙10E-6”

Thus, for a temperature rise of 65 degrees you’d have a thermal expansion coefficient of 1.105∙10E-3. Practically speaking this would mean your copper would increase in volume by 0.1105%.

Answer 2

Answer:

Calculation for expansion and contraction should be based on the average coefficient of expansion of copper which is 0.0000094 inch per inch per degree F, between 70°F and 212°F.

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