1. The problem statement, all variables and given/known data Derive an expression for the isentropic compressibility of a solid (BETA sub S) in terms of isothermal compressibility (beta sub T) and other properties normally tabulated. 2. Relevant equations β_T≝-1/V (∂V/∂P)_T β_S≝-1/V (∂V/∂P)_S 3. The attempt at a solution I may be going in circles... I realize some of my work, if not most, is redundant but I was hoping to see a possible method. Any and all help would be greatly appreciated. P.S. I tried using the latex equation editor, but after 15 mins, wanted to shoot myself.