187678
Rates of Reaction
- rate measurements
- Different reactions can happen at different rates. Reactions that happen slowly have a low rate of reaction.
Reactions that happen quickly have a high rate of reaction
- Different reactions can happen at different rates. Reactions that happen slowly have a low rate of reaction.
Reactions that happen quickly have a high rate of reaction
- reactants and products
- ways to measure the rate of a reaction
- Measure the rate at which a reactant is used up
- Measure the rate at which a product is formed
- Measure the rate at which a reactant is used up
- ways to measure the rate of a reaction
- things to measure
- The mass of a substance - solid, liquid or gas - is measured with a balance
- The volume of a gas is usually measured with a gas syringe, or sometimes an upside down measuring
cylinder or burette
- The mass of a substance - solid, liquid or gas - is measured with a balance
- factors affecting the rate
- The rate of a reaction increases if:
- The temperature is increased
- The concentration of a dissolved reactant is increased
- The pressure of a reacting gas is increased
- Solid reactants are broken into smaller pieces
- A catalyst is used
- The temperature is increased
- The rate of a reaction increases if:
- collisions
- For a chemical reaction to occur, the reactant particles must collide. Collisions with too little energy do
not produce a reaction.
- Changing concentration or pressure
- If the concentration of a dissolved reactant is increased, or the pressure of a reacting gas is increased
- There are more reactant particles in the same volume
- There is a greater chance of the particles colliding
- The rate of reaction increases
- There are more reactant particles in the same volume
- If the concentration of a dissolved reactant is increased, or the pressure of a reacting gas is increased
- For a chemical reaction to occur, the reactant particles must collide. Collisions with too little energy do
not produce a reaction.
Quer criar seus próprios Mapas Mentais gratuitos com a GoConqr? Saiba mais.