Surface Chemistry formulas

Every formula JEE Advanced expects you to know for Surface Chemistry, with the variables spelled out. Free, no sign-up. Read it before a mock, not during one.

Practise these formulas 27 practice questions

Formulas: 22
Subject: Chemistry
Exam: JEE Advanced
No sign-in needed: ₹0

Surface Chemistry, every formula

22 formulas, typeset and free. Print it, or keep it open beside your practice.

Freundlich adsorption isotherm
$\frac{x}{m} = k P^{1/ n}$
Freundlich (log form)
$lo g \frac{x}{m} = lo g k + \frac{1}{n} lo g P$
Langmuir isotherm
$\frac{x}{m} = \frac{a P}{1 + b P}$
Physisorption vs chemisorption
$physisorption: van der Waals; chemisorption: chemical bond$
Enthalpy of physisorption
$Δ H \approx 20 - 40 kJ/mol (low)$
Enthalpy of chemisorption
$Δ H \approx 80 - 240 kJ/mol (high)$
Adsorption is exothermic
$Δ H < 0$
Gibbs equation (adsorption)
$Δ G = Δ H - T Δ S < 0$
Extent of adsorption
$\frac{x}{m} = amount adsorbed per gram$
Effect of temperature (physisorption)
$decreases with rising T$
Gold number
$protective power \propto \frac{1}{gold number}$
Tyndall effect
$scattering of light by colloidal particles$
Colloid particle size
$1 - 1000 nm$
Hardy–Schulze rule
$coagulating power \propto ion charge$
Brownian motion
$random zig-zag motion of colloidal particles$
Emulsion types
$o/w and w/o$
Catalyst and Ea
$catalyst lowers activation energy$
Enzyme catalysis
$highly specific, biological catalyst$
Adsorption isobar (chemisorption)
$increases then decreases with T$
Micelle formation (CMC)
$above critical micelle concentration$
Peptization
$converting a precipitate into a colloid$
Coagulation
$aggregation of colloidal particles into a precipitate$

More JEE Advanced Chemistry formula sheets

Know the Surface Chemistry formulas. Now use them.

Formulas only stick when you apply them under time. Adaptive practice picks the concept you keep dropping marks on.

Create a free account All formula sheets

Join QuestPix, Today!

Get notified first, with exam & curriculum updates, course & test series launch offers, motivation & success stories and free learning resources recommended by toppers.

Surface Chemistry formulas

Surface Chemistry, every formula

Freundlich adsorption isotherm

Freundlich (log form)

Langmuir isotherm

Physisorption vs chemisorption

Enthalpy of physisorption

Enthalpy of chemisorption

Adsorption is exothermic

Gibbs equation (adsorption)

Extent of adsorption

Effect of temperature (physisorption)

Gold number

Tyndall effect

Colloid particle size

Hardy–Schulze rule

Brownian motion

Emulsion types

Catalyst and Ea

Enzyme catalysis

Adsorption isobar (chemisorption)

Micelle formation (CMC)

Peptization

Coagulation

More JEE Advanced Chemistry formula sheets

Know the Surface Chemistry formulas. Now use them.

Join QuestPix, Today!