$13.$ True$/$False: In a packed absorption column, increasing the solvent flow rate beyond the minimum required will always result in higher separation efficiency.

$14.$ True$/$False: The concept of minimum solvent flow rate is crucial for maximizing the process efficiency and minimizing operational costs.

$15.$ True$/$False: The Height Equivalent to a Theoretical Plate $($HETP$)$ is used to calculate the minimum diameter of an absorption column.

$16.$ True$/$False: The number of ideal stages in an absorption process can be accurately estimated without considering the gas and liquid phase equilibrium data.