Volumetric Thermal Expansion Coefficient

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Volumetric thermal expansion coefficient, abbreviated as \(\alpha_v\) (Greek symbol alpha), also called coefficient of volumetric thermal expansion, is the ratio of the change in size of a material to its change in temperature.

 

Volumetric thermal expansion coefficient Formula

\(\large{ \alpha_v  =  \frac{ V_f \;-\; V_i }{ V_i \; \left( T_f \;-\; T_i  \right)   }   }\) 
Symbol English Metric
\(\large{ \alpha_v }\)  (Greek symbol alpha) = volumetric thermal expansion coefficient \(\large{ \frac{in^3}{in^3\;F} }\) \(\large{ \frac{mm^3}{mm^3\;C} }\)
\(\large{ T_f }\) = final temperature \(\large{F}\) \(\large{C}\)
\(\large{ T_i }\) = initial temperature \(\large{F}\) \(\large{C}\)
\(\large{ V_f }\) = final volume \(\large{in^3}\) \(\large{mm^3}\)
\(\large{ V_i }\) = initial volume \(\large{in^3}\) \(\large{mm^3}\)

 

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Tags: Thermal Equations Coefficient Equations Expansion Equations