Activated carbons are uniquely complex in terms of the size, shape, and variability of their porosity. This chapter focuses on the characterization of activated carbon. The techniques of adsorption from gaseous and liquid phases, kinetics and energetics, of assessments of surface polarities and X-ray and neutron scattering are discussed to provide a complete characterization. The adsorption of gases and vapors is a physical process, not involving the formation of chemical bonds. Adsorbates differ in terms of their molecular size and polarity with the surfaces of adsorbents being energetically heterogeneous. Modern procedures measure extents of adsorption of gases using automatic volumetric methods which are suitable for most solids with surface areas >1.0m2g−1. |ACTIVATED CARBON USES IN GUJARAT| |ACTIVATED CARBON USES IN CHHATISGARH| |ACTIVATED CARBON USES IN RAIGAD| |ACTIVATED CARBON USES IN BIHAR| |ACTIVATED CARBON USES IN UTTER PRADESH| |ACTIVATED CARBON USES IN MAHARAHSTRA| ACTIVATED CARBON USES IN HARYANA| |ACTIVATED CARBON USES IN PUNJAB| |ACTIVATED CARBON USES IN PUNE |