The ratio of this quantity to its “apparent” value defines a quantity symbolized r in the Wenzel and Cassie-Baxter models. Supercritical CO2 is used to activate materials with very high values of the specific (-5[1])form of this quantity, like NU-110 and DUT-60. This quantity can be determined by injecting nitrogen into a sample cell at several different (-5[1])pressures, and then using the B·E·T isotherm. The increased capacitance of EDLCs is due to high values of this quantity for (*) activated carbon electrodes. The surface free energy equals the surface tension times this quantity. Catalysts like zeolites have high (10[1])values of this quantity (-5[1])due to their extensive pore networks giving them more sites for reactions to occur. For 10 points, give this quantity that measures the space available for molecules to adsorb. ■END■ (10[2]0[2])