Skip to main content

Posts

Showing posts with the label Entropy

Thermodynamics Class 11 Chemistry: Notes, Formulas & NEET Questions

 -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...