Applications of Rate of Reaction

Keeping food in a refrigerator If food is kept in the fridge, the food will keep longer because the low temperature will slow down the rate of the chemical reaction which destroys food. Cooking food in a pressure cooker In a pressure cooker, the high pressure causes the water in the cooker to boil at … Read more

Collision Theory

The collision theory states that: The particles of the reacting need to touch to enable formation or breaking of the bonds for a reaction to happen. Collisions of particles of a reacting substance need to achieve a certain minimum energy (Activation Energy) in order to produce a reaction. Particles that collide also need to have … Read more

Factors Affecting the Rate of Reaction

There are 4 factors that can affect the rate of a reaction, namely the total surface area of the reactant (solid only) the concentration of the reactant (solution only) the temperature of the reactant presense of catalyst in the reactant the pressure of the reactant (gas only) Total Surface Area For same amount of reactant, particles … Read more

Graph of Product/Reactant Change Against Time

Graph of Product/Reactant Change Against Time In a chemical reaction, the reactants will decrease over time the product will increase over time. the rate of reaction will decrease over time owing to the decrease in concentration and total surface area of reactants. In a graph of quantity of product/reactant over time, the rate of reaction … Read more

Understanding Rate of Reaction

Rate of reaction is defined as the change in the amount of reactants or products per unit time. It is a measure of how fast a reaction occurs. Fast Reaction = Rate of reaction is high. Slow Reaction = Rate of reaction is low A fast reaction taken shorter time for the reaction to complete. … Read more

SPM Form 5 Chemistry Chapter 1 – Rate of Reaction

Revision Notes 1.1 Rate of Reaction1.2 Analysing Rate of Reaction from Graph1.3 Factors Affecting the Rate of Reaction1.4 Collision Theory1.5 Application of Rate of Reaction Videos Understanding Rate of Reaction Finding Rate of Reaction (Example) Finding Average Rate of Reaction from Graph Finding Instantaneous Rate Finding Instantaneous Rate (Example) Factors Affecting the Rate of Reaction … Read more