Brownian movement Brownian movement, also known as Brownian motion, refers to the random motion of microscopic particles suspended in a fluid (liquid or gas). It was first observed by the Scottish botanist Robert Brown in 1827 while studying pollen grains suspended in water. The movement is named after him. Here are some key points about…
Colloid Properties Colloid properties refer to the characteristics and behaviors of colloidal systems, which are heterogeneous mixtures consisting of two or more phases. The dispersed phase is composed of particles or droplets, while the dispersion medium is the continuous phase in which the particles are dispersed. Here are some important colloid properties: These are some…
Enzyme catalysis Enzyme catalysis refers to the process by which enzymes facilitate and accelerate biochemical reactions in living organisms. Enzymes are specialized proteins that act as biological catalysts, lowering the activation energy required for a reaction to occur. This allows the reaction to proceed at a faster rate, enabling vital cellular processes to take place.…
Catalysis of homogenous and heterogeneous Catalysis can occur in both homogeneous and heterogeneous systems, each with its own characteristics and mechanisms. Here’s an overview of catalysis in homogeneous and heterogeneous systems: Homogeneous Catalysis: In homogeneous catalysis, the catalyst and the reactants are present in the same phase, typically in a solution. The catalyst is usually…
Chemisorption Chemisorption is a process in which molecules or atoms are adsorbed on the surface of a solid through chemical bonding. It involves a stronger interaction between the adsorbate (molecules or atoms) and the adsorbent (solid surface) compared to physisorption, which is based on weaker intermolecular forces. Key features of chemisorption: Applications of chemisorption: It…
Adsorption Adsorption is a process where molecules, ions, or particles adhere to the surface of a solid or liquid. It involves the accumulation of a substance at the interface between two phases, such as a solid-gas or liquid-gas interface. The substance being adsorbed is called the adsorbate, and the surface or material on which it…
Chemistry Surface chemistry is a branch of chemistry that deals with the study of phenomena that occur at the interface of two phases, such as the surface of a solid and a gas or liquid. It focuses on understanding the behavior of molecules, ions, and atoms at the surfaces and interfaces of materials. Some key…
Molecularity of a reaction The molecularity of a reaction refers to the number of molecules or particles that participate as reactants in an elementary step of a chemical reaction. It is determined by the stoichiometry of that particular step. The concept of molecularity is closely related to the reaction mechanism and the rate equation of…
Order Apologies for the confusion. Here is the suggested order for the Chemistry syllabus for the AIIMS entrance exam: Please note that this is a suggested order and you can adapt it according to your own learning style and preferences. Additionally, ensure to refer to the official AIIMS syllabus and consult appropriate study materials for…
Catalyst A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It works by providing an alternative pathway with lower activation energy, allowing the reaction to occur more readily. Catalysts play a crucial role in many industrial processes and are also significant in biological systems. Here…
