DOUBLE DIFFUSE LAYER THEORY- FIXED / STERN LAYER, ZETA POTENTIAL & FACTORS AFFECTING IT

What's Double Diffusion (DDL) Theory ?
electrical double layer,
Fixed layer,
Stern layer,
Factors affecting thickness of double layer,
Zeta potential & factors affecting it,
difference between zeta potential and iso electric point?
Why sodium ion causes dispersion in soil,
Why calcium causes flocculation in soil,
Gouy- Chapman theory,
Double diffuse layer theory of colloids,
Colloidal chemistry,
Soil chemistry,
Soil chemistry PDF notes,
Soil Chemistry
Course Title - Fundamentals of Soil Science
ICAR JRF SOIL SCIENCE / PHYSICAL SCIENCE ICAR JRF
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Pdf -
drive.google.com/file/d/1WZS2...
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Timecodes -
00:00 - what is double layer theory ?
3:45- fixed layer / Stern layer and diffuse layer
6:02 - factors affecting thickness of diffuse layer
8:01 - what's zeta potential? And factors affecting it ?
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Hello there 🙋‍♂️
In this video series I'm trying to cover topics related to Soil Chemistry.
Physical Chemistry of Soils,
Properties of colloids, Characteristics of silicate clays, Physical properties of soil colloids, Clay minerals, their type and structure, Iron and aluminum oxides, Organic soil colloids, Groups responsible for ionic exchange,
Ion Exchange Phenomena Site of cation exchange, Cation exchange capacity, Factors affecting cation exchange capacity, Base saturation, Exchangeable cations and plant nutrition, Practical implications of cation exchange, Anion exchange,
soil reactions,
pH and its method of expression, Factors affecting soil reaction, Method of determination of soil pH, Soil pH and nutrient availability, Soil organisms and pH, Buffering, Buffering in soils, Buffering capacity of soils and buffering curves, Factors affecting buffering capacity of soils, Importance of buffering,
Chemistry and Availability of Major Nutrients Nitrogen cycle, Fate of nitrogenous and phosphatic compounds, Reactions of nitrogen fertilizers, The phosphorus cycle, Phosphorus compounds in soils, pH and phosphate ions, Phosphorus fixing power of soils, The potassium cycle, Forms and availability of potassium in soil, Quality and intensity factors as related to the availability of phosphorus and potassium, Factors affecting availability of nitrogen, phosphorus and potassium in soil,
Chemistry and Availability of Secondary Nutrients Importance of sulphur, The sulphur cycle, Role of sulphur compounds in soils and plants, Sulphur oxidation and reduction, Role of calcium and magnesium compounds in soil and plant, Factors affecting availability of calcium and magnesium in soil,
Chemistry and Availability of Micronutrients,
Macro and micro-nutrient, Role of micro-nutrients, Chelated nutrients, Factors affecting availability of micro-nutrient cations and anions, Source and need for micro-nutrient balance, Micro-nutrient fertilizers and soil management,
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[@dishanath1402]

Now I am getting excited to learn about soil in details... Thank you sir🌻

[@agriculturalstudies]

You're welcome 🤗❤️ keep watching keep sharing

[@dishanath1402]

Thank you sir really your explanation is superb it is so so useful ❤

[@AnkitSharma-de3zh]

Also, due to decrease in pH the ZP can be reduced because reduction of -ve charge on the clay particle and also from the replacement of Na+ with H+. Then why pH ∝ 1/ ZP.

[@Kanhalover683]

❤❤❤❤❤❤ Thanks a lot

[@kuldeepkumarbaghel7275]

Very nice class sir ji

[@aircraft364]

Soil padne m he bhut mza aa rha h bhut ache se pdate ho thanku so much sir..... share kiya h or karunga....😊😊😊😅

[@agriculturalstudies]

Thankyou so much 💗
It would be great help for me to grow ❤️

[@anjanabareth2934]

😮😮

[@pragyasharma6083]

Your voice is amazing ..😊

[@saurabh3880]

Sir according to DK das book thickness is directly proportional to zera potential...
But aapne video m thickness is indirectly propotional to z.p kia h..
And valenency of ions agr jyada hogi to thickness km hogi, thickness km h to z.P bhi km hoga,.. So valency bhi indirectly proportional h z.p k but aapne kha h valency directly proportional h zp k

[@AnkitSharma-de3zh]

Sir, if in case of Na+, more thickness results in deflocculation of soil colloids, then why (Thickness) is ∝ 1/ZP ∝ (Flocculation).

[@nature__lover_5678]

Valency of ion reduces the Zeta potential, so it's indirectly proportional.

[@satyakimandal308]

❤❤

[@C23-333]

Beautiful explanation ❤

[@agriculturalstudies]

Thankyou ❤️
Please share this video with your friends

[@gauravverma.]

Sir good information to learn thanks 👍

[@agriculturalstudies]

Thanks for your feedback ❤️

[@zambertherider1402]

Sir, in DK Das book it was written that inner layer consist of the negative charge ions and outer layer has two positive layer i.e the fixed and dissolved layer.. and here I learnt that the negative ions layer is not counted when double layer is studied. Iam confused now.

[@gauravverma.]

7k🎉🎉

[@agriculturalstudies]

Thank you for your content support 💕💕

[@Noha631]

Sir, i have referred that zeta potential and thickness of diffused layer are directly proportional..... I think something is wrong....please kindly explain 🥲

[@Pransiuuu]

They are indeed directly proportional, even though the ionic strength of the stern layer also plays a role in the relationship between the zeta potential and the size of the diffuse layer, to my knowledge it doesn't really *change* the fact that they're directly proportional