Chapter 27 · Class 11-12 & JEE/NEET
States of Matter
45 topics in 12 parts
Key ideas
Diagnostic Comparison & Property Matrix
| Parameter / Feature | Standard State / Condition A | Altered State / Condition B |
|---|---|---|
| Driving Force | Thermodynamic control (more stable product) | Kinetic control (lower activation barrier) |
| Solvent Dependency | Polar protic solvent stabilizes charge separation | Polar aprotic solvent accelerates bare nucleophilicity |
| Temperature Influence | High temperatures favor elimination / endothermic | Mild temperatures favor addition / exothermic |
| Common Pitfall | Overlooking rearrangement or stereochemical inversion | Neglecting boundary limits or stoichiometric coefficients |
All 45 topics in States of Matter
Characteristics Of Gases
- General Characteristics of Gases & Physical States
- Intermolecular Forces in Liquids & Gases
- Thermal Energy & Molecular Motion
Pressure As Measured Property Of Gas
- Units of Pressure
- Barometers & Faulty Barometer
- Illustrations Based on Mercury Column
- Variation of Pressure with Change in Density of Fluid
- Payload
Gas Laws
- Boyle’s Law
- Charles’ Law
- Gay–Lussac’s Law
- Avogadro’s Law
- Combined Gas Laws
Ideal Gas Law
- Ideal Gas Equation (PV = nRT)
- Dimension & Numerical Values of R
- Density & Molar Mass Measurement of a Gas
- Gas Stoichiometry & Gas Mixtures
- Thermodynamic Expansion & Compression of Ideal Gas
Dalton’s Law Of Partial Pressures
- Partial Pressure in Terms of Mole Fraction
- Aqueous Tension & Collection of Gas Over Water
- Relative Humidity
Graham’s Law Of Effusion And Diffusion
- Effusion & Diffusion Rates
- Effusion Rate & Molar Mass Calculations
- Variation of Pressure Inside a Container During Effusion of a Gas
Kinetic Theory Of Gases
- Derivation of Kinetic Gas Equation & Postulates
- Kinetic Energy of Gas & Average, Most Probable & Root Mean Square Speeds
- Maxwell–Boltzmann Distribution of Molecular Speeds
- Prediction of Gas Laws
Molecular Collisions
- Collision Frequency & Collision Diameter
- Mean Free Path
- Gas Viscosity
Real Gases and Their Derivation from Ideal Gas Behaviour
- Deviations from Ideal Behavior
- Van der Waals Equation for Deviations from Ideal Behavior
- Van der Waals Constants (a & b)
Compressibility Factor
- Definition & Values of Z
- Virial Equation
- Boyle Temperature
Liquefaction Of Gases
- Critical Constants & Critical Phenomena
- Expressions of Critical Constants in Terms of Van der Waals Constants
- Experimental Methods for Liquefaction of Gases
- Law of Corresponding States
Liquid State
- Vapor Pressure & Clausius-Clapeyron Equation
- Surface Tension
- Viscosity
- Intermolecular Forces in Liquids