# Tag Info

In thermodynamics there is the compressibility $$\kappa = - \frac{1}{V_\text{mol}}\left( \frac{\partial V_\text{mol}}{\partial p} \right)_T$$ in order to describe how well one can compress a substance. For small (!) changes of pressure $\Delta p$ (while you keep temperature constant), $\Delta p \kappa$ tells you by which ...