Op Tandon Physical Chemistry

The mole is the SI unit for amount of substance. It is defined as the amount of substance that contains as many elementary entities (atoms, molecules, ions, etc.) as there are atoms in exactly 0.012 kg (12 g) of Carbon-12.

Gases combine in a simple ratio by volume, under similar conditions of temperature and pressure. op tandon physical chemistry

$$ N = n\text-factor \times M $$

O.P. Tandon's Physical Chemistry is one of the most widely recommended textbooks for students in India preparing for competitive entrance exams like , JEE Advanced , and NEET . Published by G.R. Bathla Publications , it is known for balancing rigorous theoretical explanations with a vast repository of numerical problems. Core Features of the Book The mole is the SI unit for amount of substance

| Ideal for | Not ideal for | |-----------|----------------| | JEE Main/Advanced aspirants who need numerical practice | Building foundational theory from scratch | | Students who already understand concepts from class/coaching | CBSE board exams (stick to NCERT) | | Practice after completing each chapter’s theory | Absolute beginners | $$ N = n\text-factor \times M $$ O

This is a favorite topic in O.P. Tandon for competitive exams (JEE/NEET).