Question

Coeff volume expansion and surface expansion

Answer 1

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Thermal expansion coefficient: derivation of relationship between linear expansion and volume expansion
αL VS αV
In calculating entropy change for a solid under isothermal pressure change, we used thermal volume expansion coefficient (αV). However, in most cases, not volume but linear expansion coefficients (αL) are available. In the video, we used the relationship

αV=3αL
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