T-S Diagram Explained Step-by-Step | From Subcooled Liquid to Superheated Steam

T-S Diagram of Water explained step-by-step using intuitive visualization. In this lecture, I build the Temperature-Entropy (T-S) diagram from scratch by heating water at different pressures (1 bar, 2 bar, 5 bar) and showing how the steam dome is formed. You will clearly understand: • How entropy increases during heating • Why temperature remains constant during phase change • Effect of pressure on saturation temperature • Formation of saturated liquid line • Formation of saturated vapor line • Wet steam region explained visually • Subcooled liquid region • Superheated vapor region • Critical point (≈225 bar) explanation • How full T-S diagram is constructed step-by-step This lecture is useful for: Mechanical Engineering, Thermodynamics, GATE, ESE, SSC JE, PSUs, Engineering students. The concept is demonstrated using a piston cylinder heating process, making entropy and T-S diagram extremely easy to understand. GATE mechanical engineering popular 20 videos | Physical significance of mechanical engineering topics playlist;    • GATE mechanical engineering popular 20 vid...   Learn about TS diagram of water and its thermodynamic terms by easy to understand lecture. Dr. Amit Mandal #mechanicalengineering #thermodynamics #steamturbine