1. The problem statement, all variables and given/known data Show that the coefficient of volume expansion can be expressed as β= -1÷ρ (∂ρ÷∂T) keeping P (pressure) constant Where rho is the density T is Temperature 2. Relevant equations 1/v =ρ β= 1/v (∂v÷∂T) keeping P (pressure ) constant 3. The attempt at a solution I started with the original equation (β= 1/v (∂v÷∂T) ) ,substituted ρ for 1/v and got stuck . What should I do next? What's the solution? Thank you!