What is the difference between adsorption and absorption?

Adsorption involves particles accumulating on the surface, while absorption involves particles being uniformly distributed throughout the bulk.

What is the significance of NCRT in studying surface chemistry?

NCRT is crucial for studying surface chemistry.

Thermodynamics of adsorption involves enthalpy (Delta H) and entropy (Delta S).

Chemy's option involves chemical bonds due to reactions, while Fizzies option relies on weak Van Der Waals interactions.

Adsorption depends on surface area, with higher surface area leading to increased adsorption in both options.

Understanding the distinction between adsorption and absorption is crucial in surface chemistry, with adsorption involving particles accumulating on the surface and absorption involving uniform distribution throughout the bulk.
The thermodynamics of adsorption, including factors such as enthalpy (Delta H) and entropy (Delta S), play a significant role in determining the spontaneity of adsorption processes, with Gibbs free energy change (Delta G) indicating the spontaneity at different temperatures.

What is the difference between adsorption and absorption?
Adsorption involves particles accumulating on the surface, while absorption involves particles being uniformly distributed throughout the bulk.
What is the significance of NCRT in studying surface chemistry?
NCRT is crucial for studying surface chemistry.
What is the thermodynamics of adsorption?
Thermodynamics of adsorption involves enthalpy (Delta H) and entropy (Delta S).
What are the characteristics of Chemy's option and Fizzies option in adsorption?
Chemy's option involves chemical bonds due to reactions, while Fizzies option relies on weak Van Der Waals interactions.
How does surface area impact adsorption in different options?
Adsorption depends on surface area, with higher surface area leading to increased adsorption in both options.

00:00

Physics Wala's PW English Channel covers the solid state chapter thoroughly before moving on to surface chemistry.
Surface chemistry is a theoretical chapter with no numerical aspects, emphasizing the importance of understanding the theory.
NCRT is crucial for studying surface chemistry.
The session covers adsorption, types of adsorption, and the Freundlich adsorption isotherm.
The difference between adsorption and absorption lies in the surface versus bulk phenomena.
Adsorption involves particles accumulating on the surface, while absorption involves particles being uniformly distributed throughout the bulk.
Adsorbate refers to particles being absorbed on the surface, while adsorbent provides the surface for adsorption.
Desorption is the removal of particles from the surface.
Adsorption occurs due to unbalanced particles on the surface seeking stability.
Occulation is a process where gas particles are adsorbed on a solid surface, exemplified by reactions like hydrogenation on nickel.

21:24

Anhydrous CaCl2 is water-deficient and absorbs water upon contact, exemplifying adsorption.
Charcoal in face wash adsorbs dust due to its high adsorption capacity.
Dyes are absorbed by cotton fibers, showing absorption.
Charcoal only adsorbs dyes, distinguishing between adsorption and absorption.
Thermodynamics of adsorption involves enthalpy (Delta H) and entropy (Delta S).
Bond formation releases energy (negative Delta H), while bond breakage absorbs energy (positive Delta H).
Exothermic reactions release heat (negative Delta H), while endothermic reactions absorb heat (positive Delta H).
Adsorption enthalpy (Delta H) is negative due to new interactions formed.
Entropy change (Delta S) is negative in adsorption as randomness decreases.
Gibbs free energy change (Delta G) determines spontaneity; adsorption is spontaneous at low temperatures.

40:24

Chemy's option and Fizzies option are two types of adsorption with distinct differences.
Chemy's option involves chemical bonds due to reactions, while Fizzies option relies on weak Van Der Waals interactions.
Fizzies option is reversible, while Chemy's option is irreversible due to the presence of strong chemical bonds.
The nature of the gas affects adsorption, with easily liquefiable gases being absorbed readily.
Enthalpy of adsorption is low in Fizzies option due to weak interactions, while it is higher in Chemy's option due to strong chemical bonds.
Fizzies option's adsorption decreases with increasing temperature, while Chemy's option increases with temperature until a saturation point.
Activation energy is not required in Fizzies option, but it is needed in Chemy's option due to chemical reactions.
Adsorption depends on surface area, with higher surface area leading to increased adsorption in both options.
Fizzies option results in multi-layered adsorption, while Chemy's option forms a unimolecular layer due to specific chemical bonds.
Freundlich adsorption isotherm explains the relationship between adsorption and pressure, with a specific equation and graphical representation.

58:16

Absorbed acetic acid on activated carbon is referred to as adsorbate, making option D the correct answer. Absorption due to strong chemical forces is known as chemical absorption, denoted by option A. Homework involves reading the NCRT section discussed for better understanding before the next class.