]} = \frac{c-1}{v_m c} \left ( \frac{P}{P_0} \right ) + \frac{1}{v_m c} \ \ \ \ \ \ \ (1) P and P_0 are the equilibrium and the saturation pressure of adsorbates at the temperature of adsorption, v is the adsorbed gas quantity (for example, in volume units), and v_m is