Temperature and rate: practical
I can explain, using the collision theory, how warming or cooling a reactant will affect the rate of a reaction.
Temperature and rate: practical
I can explain, using the collision theory, how warming or cooling a reactant will affect the rate of a reaction.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Increasing temperature generally increases rate by boosting the energy and frequency of collisions between particles.
- Cooling a reactant decreases its reaction rate by reducing collision energy and frequency.
Keywords
Collision theory - The collision theory is that particles must collide, and with sufficient energy, in order to react.
Activation energy - The minimum energy that the particles must have in order to react is known as the activation energy.
Rate of reaction - Rate of reaction is the speed with which a chemical reaction takes place.
End-point method - An end-point method is used to measure the progress of a reaction until it has reached completion or a desirable point, e.g. a colour change.
Common misconception
Increasing the temperature increases the rate product is formed, and therefore think a faster reaction produces more product.
Increasing the temperature will make the reaction proceed faster but will not change the amount of product formed. The reactants are the limiting factor, not the temperature.
To help you plan your year 10 chemistry lesson on: Temperature and rate: practical, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 chemistry lesson on: Temperature and rate: practical, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Explore more key stage 4 chemistry lessons from the Rate of reaction unit, dive into the full secondary chemistry curriculum, or learn more about lesson planning.
Equipment
Sodium thiosulfate solution, hydrochloric acid, card with an 'X' on, conical flask, measuring cylinder, ice, beaker, water bath timer, eye protection.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
Lesson video
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