Question

Relation between three coefficients of expansion

Answer 1

Answer:

Relationship to Linear Thermal Expansion Coefficient

The original volume will be V = L3,and the new volume, after a temperature increase, will be: V+ΔV=(L+ΔL)3=L3+3L2ΔL+3L(ΔL)2+(ΔL)3≈L3+3L2ΔL=V+3VΔLL V + Δ V = ( L + Δ L ) 3 = L 3 + 3 L 2 Δ L + 3 L ( Δ L ) 2 + ( Δ L ) 3 ≈ L 3 + 3 L 2 Δ L = V + 3 V Δ L L .

Answer 2

Answer:

Definition of coefficient of expansion. : the ratio of the increase of length, area, or volume of a body per degree rise in temperature to its length, area, or volume, respectively, at some specified temperature, commonly 0° C, the pressure being kept constant. — called also expansivity.