Thermodynamics
Linear Thermal Expansion
Change in length due to temperature change.
Variables
ΔLm
Change in length
Length increase
α1/K
Expansion coefficient
Linear expansion coeff
L₀m
Original length
Initial length
ΔTK
Temperature change
Change in temperature
Derivation
ΔL/L₀ = αΔT (proportional expansion).
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Common questions
What is the Linear Thermal Expansion formula?
Linear Thermal Expansion is written ΔL = αL₀ ΔT. Change in length due to temperature change. It belongs to Thermodynamics, under Heat & Temperature.
What are the units in ΔL = αL₀ ΔT?
In SI units, ΔL is change in length, measured in m; α is expansion coefficient, measured in 1/K; L₀ is original length, measured in m; ΔT is temperature change, measured in K.
How is the Linear Thermal Expansion formula derived?
ΔL/L₀ = αΔT (proportional expansion). The result is ΔL = αL₀ ΔT.