States of Matter: Gases — three ways to learn it.

The complete written lesson — gas properties & pressure, Boyle's, Charles's, Gay-Lussac's and Avogadro's laws, the ideal-gas equation, Dalton's & Graham's laws, the kinetic molecular theory and real gases.

As you scroll, a live D3 panel animates every idea: molecules colliding with walls, a piston demonstrating Boyle's law, a balloon expanding with Charles's law, gas diffusion, and an ideal-gas simulator where you set volume & temperature and watch the pressure respond.

Run gas experiments on a safe, virtual bench. All of the course's hands-on experiments live here, organised by chapter.