Thermodynamics
INTRODUCTION The word ‘thermodynamics’ implies flow of heat. It deals with energy changes accompanying all types of physical and chemical processes. It helps to lay down the criteria for predicting…
States Of Matter
INTRODUCTION Matter can be classified into three categories depending upon its physical state namely solid, liquid and gaseous states. Solids have a definite volume and shape; liquids also have a…
Chemical Bonding and Molecular Structure
Atoms of different elements excepting noble gases do not have complete octet so they combine with other atoms to form chemical bond. The force which holds the atoms or ions…
Periodic Table
Periodic table is an arrangement of elements with similar properties placed together. The periodic table evolved largely as a result of experimental observations. Earlier Attempts to Classify Elements: (1) Dobereiner’s…
Structure Of Atom
Dalton’s Atomic Theory: John Dalton, in 1803, put forward his atomic theory. The following are the important points of the theory : (i) Matter is composed of particles called atoms.…
Some Basic Concepts of Chemistry
Chemistry is defined as that branch of science which deals with the study of composition, structure and properties of matter. It also deals with the relation between changes in composition…