In this video, we explain Reversible Process and Irreversible Process from Physics Chapter 6 (Heat & Thermodynamics) of FSC Class 11 (Punjab Board / New Book). You will learn: ✅ What is a reversible process ✅ What is an irreversible process ✅ Key differences between reversible and irreversible processes ✅ Important examples ✅ Exam-focused points for board preparation This lecture is specially designed for FSC 11th class students to help them understand thermodynamics concepts easily.