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Basic Physics
Thermodynamics
Surface expansion

15. Thermodynamics

Surface expansion

In 15. Thermodynamics

Formula

\Delta A\approx2\alpha A_0\Delta T

Tags

physics
physics formula
thermodynamics

Detail

The change in area is approximately twice the linear coefficient times the initial area and ΔT.

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Conditions

isotropic solid and moderate temperature changes.

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Related formulas

Related
Linear expansion
$\Delta L=\alpha L_0\Delta T$
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Related
Volumetric expansion
$\Delta V=\beta V_0\Delta T$
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