Liquid Expansion
Is the coefficient or number associated with the thermal expansion of a liquid due to an increase in temperature. It compares the space of the occupied when it is measured at different temperatures, keeping other physical quantities like pressure at a constant value. There are linear, surface and volumetric expansion, where the linear is the more commonly used. This is written as:
Linear expansion = (initial length) * (coefficient of linear expansion) * (change of the temperature)
The equation is
ΔL= L α ΔT
We have:
ΔL= Expansion of the liquid
L=Length of the liquid before the change o temperature
ΔT= Change of the temperature=(T2-T1)
α= Coefficient of expansion associated individually to each material
Let value of α= a and T1=x and T2=y
