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Author: Hemant More

Types of Colloidal Solutions

Post author By Hemant More
Post date April 3, 2020
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Science > Chemistry > Colloids >Types of Colloidal Solutions In this article, we shall study types of colloidal solutions (systems) on the basis of states of the dispersed phase and dispersion medium, the interaction between the dispersed phase and dispersion medium, and on the number of atoms and molecules in a colloidal particle. Types of […]

Physical Chemistry

Introduction to Colloids

Science > Chemistry > Colloids > Colloidal Solutions Depending upon the size of particles in solution, solutions are classified as true solutions, colloidal solutions, and suspensions. In this article, we shall study colloids i.e. colloidal solutions. Historical Background: The foundation of colloidal chemistry was laid by English chemist Thomas Graham in 1861. Other prominent chemists […]

Tags Chemistry, Colloidal dispersions, Colloidal solution, Colloidal state, Colloids, Crystalloids, Dispersed phase, Dispersion medium, Solution, Suspension, True solution

Physical Chemistry

Applications of Adsorption

Post author By Hemant More
Post date April 3, 2020
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Science > Chemistry > Surface Chemistry > Applications of Adsorption In this article, we shall study some applications of adsorption. Adsorption Indicators: The phenomenon of adsorption is used to detect the endpoints of precipitation titrations. In such titrations, dyestuffs like eosin, fluorescein, alizarin red etc, are used as adsorption indicators. At the endpoint of the […]

Physical Chemistry

Application of Adsorption: Catalysis

Post author By Hemant More
Post date April 3, 2020
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Science > Chemistry > Surface Chemistry > Application of Adsorption: Catalysis In this article, we shall discuss very important application of the phenomenon of adsorption, called catalysis. Remaining applications are discussed in the next article. Catalyst: A catalyst is defined as a substance which when added to the reacting system increases the rate of the […]

Physical Chemistry

Factors Affecting Adsorption

Post author By Hemant More
Post date April 3, 2020
2 Comments on Factors Affecting Adsorption

Science > Chemistry > Surface Chemistry > Factors Affecting Adsorption In last article, we have studied the meaning of terms like adsorption, absorption, adsorbate, adsorbent. In this article, we shall study the factors affecting adsorption. The Extent of Adsorption: The quantity of an adsorbate that is adsorbed per unit mass of adsorbent is called extent […]

Tags Absorption, Adsorbate, Adsorbent, Adsorption, Adsorption enthalpy, Adsorption isotherm, Chemical adsorption, Chemisorption, Chemistry, Desorption, Extent of adsorption, Freundlich adsorption isotherm, Heat of adsorption, Physical adsorption, Surface chemistry

Physical Chemistry

Adsorption

Science > Chemistry > Surface Chemistry > Adsorption Adsorption is defined as the phenomenon in which there is the accumulation of one substance on the surface of the other substance. It can also be defined as the change in concentration at the interfacial layer between two phases of the system due to surface forces. OR It […]

Tags Absorption, Adsorbate, Adsorbent, Adsorption, Adsorption enthalpy, Adsorption isotherm, Chemical adsorption, Chemisorption, Chemistry, Desorption, Extent of adsorption, Freundlich adsorption isotherm, Heat of adsorption, Physical adsorption, Surface chemistry

Physical Chemistry

Applications of Le-Chatelier’s Principle

Post author By Hemant More
Post date April 2, 2020
4 Comments on Applications of Le-Chatelier’s Principle

Science > Chemistry > Chemical Equilibrium > Applications of Le-Chatelier’s Principle In this article we shall study the application of Le-Chatelier’s principle in Haber’s process, contact proces, etc. Statement of Le-Chatelier’s Principle: This principle is given by, a French chemist Le-Chatelier in 1888. It states that “If an external stress is applied to a reacting […]

Physical Chemistry

Le-Chatelier’s Principle

Science > Chemistry > Chemical Equilibrium > Le-Chatelier’s Principle In this article, we shall study Le-Chatelier’s principle with examples. Statement: This principle is given by, a French chemist Le-Chatelier in 1888. It states that “If an external stress is applied to a reacting system at equilibrium, the system will adjust itself in such a way […]

Tags Chemical equilibrium, Chemical reaction, Chemistry, Endothermic reaction, Equilibrium, Equilibrium constant., Exothermic reaction, Heterogeneous reaction, Homogeneous reaction, Irreversible reaction, Le-Chatelier's principle, Physical equilibrium, Products, Reactants, Reversible reaction

Physical Chemistry

Equilibrium Constant

Science > Chemistry > Chemical Equilibrium > Equilibrium Constant Characteristics of Equilibrium Constant: It has a definite value for every chemical reaction at a particular temperature. It is independent of the initial concentrations of the reacting species. It changes with the change in the temperature. It depends on the nature of the reaction. It is […]

Physical Chemistry

Writing Expression for Equilibrium Constant

Post author By Hemant More
Post date April 2, 2020
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Science > Chemistry > Chemical Equilibrium > Writing Expression for Equilibrium Constant In this article, we shall stuudy to write expression for equilibrium constant. Steps Involved in Writing Expression for Equilibrium Constant of a Reaction: Write the balanced chemical equation for the reaction. Write the products of equilibrium concentrations of the products in the numerator. […]