Deriving the expression for equilibrium constant for ammonia synthesis reaction Animation Play

Determination of reaction rate by measuring the volume or pressure of the gas evolved Student activity Play

Determining the relative molecular mass Animation Play

Diffusion Student activity Play

Diffusion and pressure Student activity Play

Diffusion and pressure - statements Whiteboard exercise Play

Diffusion and smelling food Animation Play

Directional changes in an ecosystem Animation Play

Discontinuous variation Student activity Play

Discontinuous variation Slideshow Play

Diseases related to chromosome changes Illustration Play

Dissolution of gases in water Whiteboard exercise Play

Dissolution of gases in water Student activity Play

Distinguish between a physical and a chemical changes Whiteboard exercise Play

Diurnal changes in the body temperature of the camel Animation Play

Doubling time changes Student activity Play

Doubling time changes Whiteboard exercise Play

Drawing pins Animation Play

Early research on mutations Slideshow Play

Effect of concentration on chemical equilibrium Student activity Play

Effect of concentration – a microscopic view Student activity Play

Effect of concentration – a microscopic view Whiteboard exercise Play

Effect of number of gas particles on the pressure Animation Play

Effect of pressure increase on reaction rate at the molecular level Animation Play

Effect of pressure on chemical equilibrium Student activity Play