Home Chemistry States of Matter - Gases and Liquids

States of Matter - Gases and Liquids

Three states of matter, intermolecular interactions, types of bonding, melting and boiling points,role of gas laws in elucidating the concept of the molecule, Boyle’s law, Charle’s law, Gay Lussac’s law, Avogadro’s law, ideal behaviour, empirical derivation of gas equation, Avogadro number, ideal gas equation. Kinetic energy and molecular speeds (elementary idea), deviation from ideal behaviour, liquefaction of gases, critical temperature. Liquid State – Vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations).

11th Chemistry NCERT notes

Liquid State

Characteristics of Liquid State In liquid, intermolecular forces are strong in comparison to gas. They have definite volume but irregular shapes or we can...
11th Chemistry NCERT notes

Kinetic Theory of Gases

Kinetic Theory of Gases Assumptions or postulates of the kinetic-molecular theory of gases are given below. These postulates are related to atoms and molecules which...
11th Chemistry NCERT notes

Ideal Gas and Dalton’s law of Partial Pressures

A gas that follows Boyle’s law, Charle’s law, Avogadro law strictly, is called an ideal gas. Real gases follow these laws only under certain...
11th Chemistry NCERT notes

The Gaseous State

Physical Properties of Gaseous State Gases have no definite volume and they do not have specific shape. Gases mix evenly and completely in all...
11th Chemistry NCERT notes

Intermolecular Forces

The forces of attraction existing among the molecules of a substance (gaseous, liquid or solid) are called intermolecular forces. Greater the intermolecular forces, higher is...
11th Chemistry NCERT notes

Deviation from Ideal Gas Behavior

Real Gas A gas which does not follow ideal gas behavior under all conditions of temperature and pressure is called real gas. Deviation with respect to...
11th Chemistry NCERT notes

States of Matter- Gases and Liquids

Any substance that has mass and occupies space is called Matter. The matter is composed of atoms or molecules. The force of interaction between...