- #1
matthewsyq1995
- 7
- 0
Homework Statement
Express volume expansivity (B) in terms of density (ρ) and its partial derivatives
Homework Equations
B = (1/V) (dV/dT)
V = m/ρ
The Attempt at a Solution
I have only managed to substitute m/ρ into the expansivity equation.
Don't really understand how to manipulate the differential equation into (-1/ρ)(dρ/dT)
Especially the part where d[(m/ρ)]/(m/ρ) equals (-1/ρ)dρ