Free Expansion and Laplace Correction | JEE 2027 Physics (English)

Free notes + solved JEE problems for this lesson: https://rankdeterminant.com/go/yt-phy... All lessons of this unit:    • JEE 2027 Physics | Unit 8 Thermodynamics   Why a gas expanding into a vacuum does no work and keeps its temperature, why the bulk modulus of a gas is p when isothermal but gamma times p when adiabatic, and how Laplace corrected Newton's formula for the speed of sound in air, with two solved JEE-style problems and the classic traps. Chapters 0:00 Introduction 0:28 Free expansion: a gas rushes into a vacuum 2:12 Bulk modulus of a gas: B=p or B=γp 3:29 Speed of sound in a gas: Newton and Laplace 5:01 Example 1: gas expands into a vacuum, final T and work done 6:10 Example 2: speed of sound in air at STP, Laplace vs Newton 7:46 Quick revision: free expansion, bulk modulus, sound speed A free JEE paper every day and a full JEE Main mock every Sunday: https://rankdeterminant.com/go/yt-dai... Physics · Unit 8 · Thermodynamics · Chapter 3 · Adiabatic Processes #LaplaceCorrection #JEEPhysics #JEE2027 Narrated with a computer voice.