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Thermal Physics · thermal expansion

Linear Thermal Expansion

Approximates length change from a temperature change.

Δℓ = αℓ₀ΔT

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Variables

Δℓ
length changem
α
linear expansion coefficient1/K
ℓ₀
initial lengthm
ΔT
temperature changeK

Conditions / notes

Uses a nearly constant expansion coefficient over the interval.

Reference details

Subject
Thermal Physics
Topic
thermal expansion
Plain text
delta l = alpha l0 delta T

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