Adsorption Theory The surface of the catalyst has free valencies which provide sites for chemical forces of attraction. The reactants in the gaseous state or in solution are adsorbed on the surface of the solid catalyst. As the reactant molecules are adsorbed, its bonds are weakened and the reaction can proceed quickly because the bonds are more quickly broken. For … [Read more...] about Modern Adsorption Theory and Features of Solid Catalyst
Class 12
Catalysis and Classification of catalyst
Catalysis A substance which increases the speed of a reaction without being consumed in the reaction is called a catalyst. The phenomenon of increasing the rate of reaction by the use of catalyst is called catalysis. Living cells contain thousands of different kinda of proteins called enzymes which act as catalysts. A catalyst provides an entirely new path for the reaction … [Read more...] about Catalysis and Classification of catalyst
Application of Adsorption
Applications of adsorption Some of the important applications of adsorption are given below: 1) In gas masks: Activated charcoal or a mixture of adsorbents is generally used in gas masks to adsorb poisonous and toxic gases from air. These masks are commonly used by the miners because there are poisonous gases like CO, CH4 etc. in the atmosphere in the coal mines. … [Read more...] about Application of Adsorption
Adsorption Isotherms and Isobars
Adsorption Isotherm The adsorption on a given surface generally increases with increase in pressure (for gases) and concentration (for solutions) at a constant temperature. The extent of adsorption of a gas per unit mass of adsorbent depends upon the pressure of the gas. The relation between the amount of substance adsorbed by the adsorbent and the equilibrium gas pressure … [Read more...] about Adsorption Isotherms and Isobars
Adsorption of Gases On Solids
Adsorption of Gases on Solids The extent of adsorption of a gas on a solid surface is affected by the following factors: 1) Nature of the gas 2) Nature of adsorbent 3) Specific area of the adsorbent 4) Effect of temperature 5) Effect of pressure 6) Activation of adsorbent. Nature of the gas (or adsorbate) The adsorption depends upon the nature of the gas … [Read more...] about Adsorption of Gases On Solids