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Gibbs Adsorption Isotherm Derivation Video Lecture - IIT JAM
FAQs on Gibbs Adsorption Isotherm Derivation Video Lecture - IIT JAM
| 1. What is the Gibbs adsorption isotherm? |  |
Ans. The Gibbs adsorption isotherm is a mathematical equation that relates the surface excess of a substance to its equilibrium concentration in a solution at a constant temperature and pressure. It describes the behavior of adsorbates at the surface of a liquid or solid.
| 2. How is the Gibbs adsorption isotherm derived? | |
Ans. The Gibbs adsorption isotherm can be derived by considering the thermodynamic equilibrium between the adsorbed phase and the bulk phase of a substance. It involves the application of thermodynamic principles, such as chemical potential and partition functions, to derive the equation.
| 3. What are the assumptions made in the derivation of the Gibbs adsorption isotherm? | |
Ans. The derivation of the Gibbs adsorption isotherm assumes that the adsorbate molecules do not interact with each other, the adsorption process is reversible, and the surface is homogeneous and uniform. These assumptions simplify the mathematical calculations involved in deriving the equation.
| 4. How is the Gibbs adsorption isotherm useful in studying interfacial phenomena? | |
Ans. The Gibbs adsorption isotherm provides insights into the interfacial behavior of substances at the liquid or solid surface. It can be used to determine the surface excess of adsorbates, study the effects of temperature and pressure on adsorption, and understand the nature of interactions between the adsorbate and the adsorbent.
| 5. What are the applications of the Gibbs adsorption isotherm in various fields? | |
Ans. The Gibbs adsorption isotherm finds applications in diverse fields such as colloid chemistry, electrochemistry, surface science, and biophysical chemistry. It is used to understand phenomena like emulsion stability, corrosion inhibition, surfactant behavior, and protein adsorption, among others.
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