nota kimia

RATE OF REACTION

(The speed of chemical reaction ) Fast or slow

How to measure the rate of reaction?

Rate of reaction = amount of a reactant used up divide by

Time taken

Rate of reaction = amount of a product formed divide by

Time taken

Factors affecting the rate of reaction

1. The Size of reactant

2. The concentration of the solution

3. The temperature

4. The catalyst

Application of factors that affect the rate of reaction

1. Cooking food of smaller pieces

2. Acid rain-heavy industrialized area ,concentration of acid high

3. Cooking of food in a pressure cooker

4. Industrial process- Haber process used iron

Contact process used vanadium pentoxide

Collision Theory

(particles of reactant must collide with each other to react)

1.Particles must have correct orientation

2. Particles must have minimum amount of energy

Activation energy

The minimum amount of enegy for the particels to react

The activation energy can be shown in an energy profile diagram