Category: Liquids and Gases in Equilibrium with Solids
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Glossary
adsorbent A solid surface on which gas or liquid molecules condense to form a film. adsorption The physical process that occurs when gas or liquid molecules are brought into contact with a solid surface and condense on the surface. adsorption isotherm The mathematical or experimental relation between the amount a single component adsorbed (the adsorbate) on the adsorbent,…
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Self-Assessment Test
Would condensation of water below its dew point on charcoal be considered adsorption? 2. Would the conversion of solid NaOH by HCl gas to NaCl be considered adsorption? 3. Would the drying of moist air by charcoal be considered adsorption? 4. Can more than one component be removed simultaneously from a gas or liquid by a solid adsorbent?…
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Main Concepts
Many important processes involve the adsorption of gases or liquids on solids. Some examples for liquids are What goes on in adsorption? Adsorption is a physical phenomenon that occurs when gas or liquid molecules are brought into contact with a solid surface, the adsorbent. Some of the molecules may condense (the adsorbate) on the exterior surface and in the cracks…
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Looking Ahead
In this chapter we discuss the adsorption of gases and liquids on solids when the system is at equilibrium. You will learn what some of the relations are that are used to predict the amounts of absorption, and what kinds of data are collected to get the values of the coefficients in the relations.