Linear Thermal Expansion

Written by Jerry Ratzlaff on . Posted in Thermodynamics

expansion linear 1Linear thermal expansion (also known as line thermal expansion) is a porportional change in the origional length and change in temperature due to the heating or cooling of an object.

Linear Thermal Expansion Formulas

(Eq. 1)  \(\large{ \Delta l  =   l_f \;-\;  l_i  }\)                      

(Eq. 2)  \(\large{ \Delta l  =  \alpha l_i  \Delta T }\)       


\(\large{ \Delta l }\)   (Greek symbol alpha) = linear thermal expansion

\(\large{ \Delta T }\) = temperature differential

\(\large{ l_f }\) = final length of object

\(\large{ l_i }\) = initial length of object

\(\large{ \alpha }\)   (Greek symbol alpha) = linear expansion coefficient


Tags: Equations for Thermal