What does the diffusion of gases tell us about their particles ?
DIFFUSION OF GASES Inter mixing of two or more gases to form a homogeneous mixture without any chemical change is called “DIFFUSION OF GASES” . Diffusion is purely a physical phenomenon. Gases diffuse very quickly due to large empty spaces among molecules. Different gases diffuse with different rates (velocities). GRAHAM’S LAW OF DIFFUSION Graham’s law is a quantitative relation between the density and rate of diffusion of gases. STATEMENT The rate of diffusion of a gas is inversely proportional to the square root of its density. The comparative rates of diffusion of two gases are inversely proportional to the square root of their densities. SEE http://en.wikipedia.org/wiki/Gaseous_dif… DIFFUSION OF GASES ABOUT THEIR PARTICLES: The particle model of a Gas A gas has no fixed shape or volume, but always spreads out to fill any container. There are almost no forces of attraction between the particles so they are c
