Question

Derive relation between coefficient of linear and volume expansion

Answer 1

αLαL VS αVαV
In calculating entropy change for a solid under isothermal pressure change, we used thermal volume expansion coefficient (αVαV). However, in most cases, not volume but linear expansion coefficients (αLαL) are available. In the video, we used the relationship

αVαV=3αLαL
Here, let’s derive this relationship.