Thermal Expansion of Solids

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Thermal Expansion of Solids Formulas

\(\large{ \Delta l  =      \alpha   l_i  \Delta T }\) = linear expansion                             

\(\large{ \Delta A  = 2 \alpha   A_i  \Delta T }\) = aerial or superficial expansion         

\(\large{ \Delta V  =  3 \alpha  V_i  \Delta T }\) = volumetric or cubical expansion

Where:

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

\(\large{ A_i }\) = initial area of object

\(\large{ \Delta A }\) = area differential

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

\(\large{ \Delta l }\) = length differential

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

\(\large{ V_i }\) = initial volume of object

\(\large{ \Delta V }\) = volume differential

 

Tags: Equations for Thermal