Chapter 12: Kinetic Theory
NCERT Class 11 Physics, Part II, Chapter 12. 4 lessons, 10 narrated 3D videos, 5 simulations and 8 quiz questions, following the textbook section by section.
- Molecules and the behaviour of gasesPut a drop of ink into a glass of still water. Without any stirring, the colour slowly spreads everywhere. Something far too small to see must be moving and mixing it.
- Pressure of an ideal gasWhy does a gas push on the walls of its container? Kinetic theory pictures a gas as a huge number of tiny molecules in endless random motion, forever hitting the walls.
- Equipartition of energy and specific heatsA gas molecule can store energy in several ways. The simplest is moving. Its translational kinetic energy is half m v x squared, plus half m v y squared, plus half m v z…
- Mean free pathLight an agarbatti in one corner of a still room. Air molecules move at hundreds of metres per second, yet the smell takes many seconds, even minutes, to cross the room.…