β 34 x 10^-6 per °C(thirty-four multiple by ten to the power of minus six per degree celsius)
Superficial(Area) thermal expansion can be expressed as: dA A0 γ (t1 - t0) where: dA change in area (m^2) A0 initial area (m^2) 20 m^2 γ(β) superficial temperature coefficient 34 x 10^-6 t0 initial temperature (oC) 15°C t1 final temperature (oC) 80°C dA 20 x 34 x 10^-6 (80 - 15) 0.0442 m^2 Change in area: dA 0.0442 m^2 Final Area: A1 20.0442 m^2
