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Concentration cells

Post author By Miraj Ahmad Ansari
Post date December 3, 2020

JEE MAINS / ADVANCE Electrochemistry Concentration cells

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← Electrolytic conductance, specific, equivalent and molar conductivity Kohlrausch’s law → Rates of chemical reactions

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8 Topics

Concept of atoms and molecules

Dalton’s atomic theory

Chemical formulae

Balanced chemical equations

Calculations (based on mole concept) involving common oxidation-reduction

Calculations (based on mole concept) involving common oxidation-reduction, neutralisation, and displacement reactions

Concentration in terms of mole fraction, molarity, molality and normality.

8 Topics

First law of thermodynamics

Internal energy, work and heat, pressure-volume work

Enthalpy, Hess’s law

Heat of reaction, fusion and vapourization

Second law of thermodynamics

Criterion of spontaneity

Chemical equilibrium

5 Topics

Law of mass action

Equilibrium constant, Le Chatelier’s principle (effect of concentration, temperature and pressure)

Significance of ΔG and ΔG0 in chemical equilibrium

Solubility product, common ion effect, pH and buffer solutions; Acids and bases (Bronsted and Lewis concepts);

Hydrolysis of salts

Electrochemistry

7 Topics

Electrochemical cells and cell reactions

Standard electrode potentials

Nernst equation and its relation to ΔG

Electrochemical series, emf of galvanic cells

Faraday’s laws of electrolysis

Electrolytic conductance, specific, equivalent and molar conductivity Kohlrausch’s law

Concentration cells

Chemical kinetics

5 Topics

Rates of chemical reactions

Order of reactions

First order reactions

Temperature dependence of rate constant (Arrhenius equation)

2 Topics

Classification of solids, crystalline state, seven crystal systems (cell parameters a, b, c, α, β, γ), close packed structure of solids (cubic), packing in fcc, bcc and hcp lattices

Nearest neighbours, ionic radii, simple ionic compounds, point defects

2 Topics

Molecular weight determination from lowering of vapour pressure, elevation of boiling point and depression of freezing point

Surface chemistry

3 Topics

Elementary concepts of adsorption (excluding adsorption isotherms)

Colloids: types, methods of preparation and general properties

Elementary ideas of emulsions, surfactants and micelles (only definitions and examples)

Nuclear chemistry

5 Topics

Radioactivity: isotopes and isobars

Properties of α, β and γ rays

Kinetics of radioactive decay (decay series excluded), carbon dating

Stability of nuclei with respect to proton- neutron ratio

Brief discussion on fission and fusion reactions

Isolation/preparation and properties of the following non-metals

2 Topics

Boron, silicon, nitrogen, phosphorus, oxygen, sulphur and halogens

Properties of allotropes of carbon (only diamond and graphite), phosphorus and sulphur

Preparation and properties of the following compounds

7 Topics

Oxides, peroxides, hydroxides, carbonates, bicarbonates, chlorides and sulphates of sodium, potassium, magnesium and calcium

Boron: diborane, boric acid and borax

Aluminium: alumina, aluminium chloride and alums

Carbon: oxides and oxyacid (carbonic acid)

Silicon: silicones, silicates and silicon carbide

Nitrogen: oxides, oxyacids and ammonia

Atomic structure and chemical bonding Bohr model, spectrum of hydrogen atom, quantum numbers

Atomic structure and chemical bonding

3 Topics

Bohr model, spectrum of hydrogen atom, quantum numbers

Wave-particle duality, de Broglie hypothesis

Uncertainty principle

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