Chemistry teacher

 -Dr.Sanjaykumar Pawar  THERMODYNAMICS – CLASS 11 CHEMISTRY  Thermodynamics – Learn the laws of energy, heat, work, enthalpy, entropy and Gibbs free energy for NEET and JEE. Introduction Thermodynamics is the branch of science that deals with heat, work, energy and their transformations. In Chemistry, thermodynamics helps us understand why chemical reactions release or absorb energy, how energy changes occur during physical processes, and whether a reaction is thermodynamically favourable. Examples: Burning of fuels releases heat. Melting of ice absorbs heat. Expansion of gases involves work. Chemical reactions involve changes in internal energy and enthalpy. 1. Basic Terminology of Thermodynamics 1.1 System A system is the part of the universe selected for thermodynamic study. Example: Gas enclosed in a cylinder. 1.2 Surroundings Everything outside the system that can interact with it is called the surroundings. 1.3 Boundary The real or imagi...

 Dr.Sanjaykumar Pawar  GASEOUS STATE – COMPLETE BEGINNER NOTES  Gaseous State – Understand gas laws, molecular motion, ideal gas behaviour and kinetic theory with easy Class 11 Chemistry notes. Introduction to Gaseous State The gaseous state is one of the three fundamental states of matter. Gases have no fixed shape or volume. They occupy the entire container in which they are placed. Gas molecules are continuously moving in random directions. They collide with one another and with the walls of the container. The behaviour of gases can be explained using gas laws and the kinetic molecular theory. Learning Objectives After completing this lesson, students will be able to: Understand the fundamental gas laws. Apply the ideal gas equation. Calculate molecular speed and kinetic energy. Understand real gases and Van der Waals equation. Explain critical temperature and pressure. Calculate mean free path and collision frequency. Solve basic numerical probl...

 - Dr.Sanjaykumar Pawar    Chemistry Teacher IQ: free notes, MCQs and mock tests for CBSE, NEET and JEE chemistry. Atomic Models for NEET: Thomson Plum Pudding & Rutherford Nuclear Model Explained Atomic Models for NEET: Thomson Plum Pudding & Rutherford Nuclear Model Explained Introduction Thomson Rutherford Formulas Numericals Comparison Practice FAQs Introduction What are atomic models? An atomic model is a scientific representation of the internal structure of an atom : how protons, neutrons and electrons are arranged inside it. Atoms are too small to observe directly, so scientists proposed models based on the experimental evidence available at the time. Think of a sealed box. You can't see inside, but by shaking it, weighing it and listening, you can guess what is in it. That is what Thomson, Rutherford and later Bohr did with the atom. Why is this topic important for NEET? Atomic models are the foundation of the "Structure of Atom...

 - Dr.Sanjaykumar Pawar   CBSE Chemistry Notes, MCQs & Questions | Chemistry Teacher IQ  Chemistry Teacher IQ – Complete Chemistry Learning Resources for CBSE, NEET & JEE Aspirants Chemical Bonding - Topper's Detailed Notes ⚛️ CHEMICAL BONDING Topper's Detailed Notes VSEPR Theory • Molecular Geometry • Bond Angles • Electronegativity • Bond Dipoles • Molecular Dipole Moment Class 11/12 • NEET • JEE Foundation 1. Why Do Atoms Form Chemical Bonds? Atoms form chemical bonds because a bonded system can achieve a more stable electronic arrangement. The electrons involved in bonding are mainly the valence electrons . For many main-group elements, stability is associated with achieving a noble-gas-like valence-shell configuration. This is commonly described using the octet rule , although the octet rule has important exceptions. Core idea: Chemical bonding is fundamentally an interaction involving electrons and nuclei. The arrangement of these interac...