Rate of Reaction (3)

Surface Area of Solid Reactants:

THE LARGER THE SURFACE AREA OF A REACTANT, THE FASTER THE REACTION.

• Powdered solids have a larger suface area compared to their volume than lumps of solid. This means there are more particles on the surface for the other reactants to collide with.

THE GREATER PROPORTION OF PARTICLES EXPOSED IN A POWDERED SOLID, THE GREATER THE CHANCE OF THEM COLLIDING, WHICH INCREASES FREQUENCY OF COLLISIONS WHICH INCREASES RATE OF REACTION.

• So, powders can have very fast reactions, much…