Ametal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal?

We need to find coefficient of linear expansion for the metal

Change in temperature = 102 -25 = 77 degree Celsius

Change in length = 25.054 - 25.000 = 0.054 cm

Expansion because of rise in temperature = lαΔT

                                         0.054 = 25.000*α*77

                                              α =

So coefficient of linear expansion for the metal =

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