Adsorption can be termed as a process where molecules, ions, or atoms of a solid, liquid or gas form a layer around the surface of a solid or a liquid. Coined by the great physicist Heinrich Kayser, the term adsorption was first used back in the year 1881. In simpler terms, adsorption is a process […]
The incidents taking place in our day to day lives are explained by different phenomena. The two main phenomena that can be observed in our daily lives are cohesion and adhesion. The terms cohesion and adhesion may seem similar in pronunciation, but they are very different concepts showing different characteristics. These two phenomena can be
Adsorption and absorption are important for physical and chemical processes with practical applications in making life safer and better. Adsorption and absorption are the two most prevalent surface chemical processes. The distinctions between adsorption and absorption are frequently misunderstood. Atoms travel through or enter a substance during the absorption process. On the other hand, adsorption
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Adsorption and absorption, Chemistry, Class 11, IIT JEE, Surface ChemistryActivation Energy Examples Assume you are hiking and need to climb a hill to get to the other side. You will need to give some effort to go up the slope. The higher the slope, the more energy you must use to get to the other side. Molecules in biological processes also require energy to
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Activation energy, Chemical Kinetics, Chemistry, Class 11, IIT JEEThe ability to do work is a fundamental natural entity that is transferred between parts of a system to produce a significant reaction within the system. This ability to do work is called Energy. The Energy of an entity is a function of its atoms, molecules, or merged structures. When a chemical reaction occurs to
Activation energy is a chemistry concept proposed by a Swedish scientist named “Svante Arrhenius” in 1889. The activation energy is the smallest amount of energy required by chemical reactants to activate a chemical reaction. The activation energy is sometimes defined as the minimum amount of energy required to initiate a chemical reaction. Thousands of chemical
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Activation energy, Chemical Kinetics, Chemistry, Class 11, IIT JEEThe energy that an object possesses by virtue of its motion is called kinetic energy. This means that when an object accelerates, the energy it gains is called kinetic energy. This energy remains constant unless the object’s speed changes. An object that decelerates from its current speed to rest does just as much work as
Work is a physics term describing the amount of energy transferred when an object is moved over a distance by an external force, at least a portion of which is applied in the direction of displacement. Work can be calculated by multiplying the length of the path by the component of the force acting along the
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Activation energy, Chemical Kinetics, Chemistry, Class 11, IIT JEEIntroduction Every second, thousands of chemical interactions take place in our body. Several chemical processes are necessary for life to exist. In order to make new bonds, many molecules have attained stable states and must be ripped apart. However, breaking and establishing bonds takes a lot of energy, which is referred to as ‘activation energy’.
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Activation energy, Chemical Kinetics, Chemistry, Class 11, IIT JEEElectron Gain Enthalpy Definition of electron gain enthalpy Electron gain enthalpy is the energy gained by a gas atom when an electron is accepted to form a negative ion. It is measured in electron volts per atom or kJ per mole (kJ/mol). The easiest method used to determine this energy is the electron gain enthalpy
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Activation energy, Chemical Kinetics, Chemistry, Class 11, IIT JEE