Physics – 2.2.1 Thermal expansion of solids, liquids and gases | e-Consult
2.2.1 Thermal expansion of solids, liquids and gases (1 questions)
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The formula for linear expansion is: ΔL = αL0ΔT, where:
- ΔL = change in length
- α = coefficient of linear expansion
- L0 = original length
- ΔT = change in temperature
First, calculate the change in temperature: ΔT = 80°C - 20°C = 60°C.
Then, calculate the change in length: ΔL = (12 x 10-6 K-1) x (2.00 m) x (60°C) = 0.0144 m.
Finally, calculate the new length: L = L0 + ΔL = 2.00 m + 0.0144 m = 2.0144 m.
Therefore, the new length of the block is 2.0144 m.