If we already know the expansion coefficient then we can calculate the change in volume D V V a V D T displaystyle frac Delta VValpha _VDelta T where D V V displaystyle Delta VV is the fractional change in volume eg 0002 and D T displaystyle Delta T is the change in temperature 50 C. SI unit Dimension. Formula to find a V 1V DVDT substitute the values in the above formula.
If the change in length is along one dimension length over the volume then it is called linear expansion.
Volumetric Thermal Expansion Calculator. L1 is the initial length of the material. Volumetric Temperature Coefficients - v - for some Fluids. The Volumetric thermal expansion is the fractional change in density as temperature increases at constant pressure.