Particle in a Box: The Derivation IIT-JAM and CSIR-NET Actually Ask

August 29, 2026

| Chemical Science Exams, Physical Chemistry

Physical Chemistry · Quantum Particle in a Box: The Derivation IIT-JAM and CSIR-NET Actually Ask Almost every quantum question at entrance level is this one model wearing a different hat. Learn the derivation properly once and a whole unit becomes routine. BSc & MSc · Physical Chemistry · Concept · IIT-JAM, CSIR-NET, GATE The short answer: A particle confined to a one-dimensional box of length L has quantised energy En = n²h²/8mL², with n = 1, 2, 3… The quantisation is not assumed — it falls out of forcing the wavefunction to vanish at both walls. Understanding why that boundary…

IIT-JAM Chemistry: How to Study Physical Chemistry Without Drowning in Formulas

August 28, 2026

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| Chemical Science Exams, IIT-JAM Chemistry

IIT-JAM · Chemistry IIT-JAM Chemistry: How to Study Physical Chemistry Without Drowning in Formulas For BSc students across India preparing for IIT-JAM — why physical chemistry feels heaviest, and the method that turns it into the most reliable section. IIT-JAM · Physical Chemistry · Graduate entrance · Published 28 August 2026 In short: Physical chemistry is the section most JAM aspirants fear and the one that rewards method most. The problem is almost never the formulas — it is that candidates memorise results instead of learning which quantity is being conserved, held constant or measured. Fix that and the same…

Atomic Structure (Class 11): Quantum Numbers and Electronic Configuration Explained

August 25, 2026

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| Class 11, class 11-12 chemistry, Physical Chemistry

What each quantum number actually tells you, the three filling rules, and why chromium and copper break the pattern.

Ionic Equilibrium (Class 11): pH, Buffers and Solubility Product Solved

August 25, 2026

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| Class 11, class 11-12 chemistry, Physical Chemistry

The logarithm work that trips students up, the Henderson equation, and why a buffer resists pH change at all.

Thermodynamics (Class 11): First Law, Enthalpy and Hess’s Law Made Simple

August 24, 2026

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| Class 11, class 11-12 chemistry, Physical Chemistry

Sign conventions, the difference between ΔU and ΔH, and how Hess’s law turns an impossible measurement into simple arithmetic.

Solutions and Colligative Properties (Class 12): Formulas Plus Solved Numericals

August 24, 2026

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| class 11-12 chemistry, Class 12, Physical Chemistry

Raoult’s law, the four colligative properties, and the van’t Hoff factor that decides whether your answer is right or half right.

Chemical Kinetics (Class 12): Rate Law, Order and Half-Life Made Simple

August 24, 2026

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| class 11-12 chemistry, Class 12, Physical Chemistry

Order versus molecularity, the integrated rate equations you are actually asked to use, and where students lose marks in kinetics numericals.

Electrochemistry (Class 12): Kohlrausch’s Law & Conductance, Made Simple

August 23, 2026

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| class 11-12 chemistry, Class 12

Understand molar conductivity and use Kohlrausch law to find values for weak electrolytes, with a solved acetic acid example.

Mole Concept & Stoichiometry (Class 11 Chemistry): Formulas + Solved Numericals

August 22, 2026

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| Class 11, class 11-12 chemistry

Master the Class 11 mole concept and stoichiometry with three key formulas and solved numericals on mass, molecules and limiting reagents.

Nernst Equation Numericals for Class 12 Chemistry (Solved Step by Step)

August 22, 2026

| 1 Comment

| class 11-12 chemistry, Class 12

Solve Class 12 Chemistry electrochemistry numericals using the Nernst equation E = E° − (0.0591/n) log Q, with two fully worked board-style examples and common mistakes to avoid.

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