Class 12 Physics lecture includes 1. Introduction to Gas laws 2. Boyle's Law( Statement, Formula, Demonstration and Graph) 3. Charles Law ( Statement, Formula, Demonstration and Graph) 4. Avogadro's Law ( Statement, Formula, Demonstration and Graph) 5. Derivation of eneral Gas Law These topics are explained especially for ; 1. Sindh Boards 2. Punjab Board 3. Federal Board 4. Aga Khan University Examination Board (AKUEB) __________________________________