Skip to content
Toggle sidebar
Pricing
Log in
Sign up free
Loading…
Home
Subjects
Past papers
Key terms
Pricing
My courses
Select your courses
Loading…
Loading…
Energy Changes and Reaction Profiles — OCR GCSE Combined Science B J260
Home
More
Combined Science
OCR GCSE Combined Science B
Air and Water
Temperature Changes in Chemical Reactions
Energy Changes and Reaction Profiles
OCR GCSE Combined Science B · J260
Energy Changes and Reaction Profiles
What you need to know
Distinguish between endothermic and exothermic reactions based on observed temperature changes in the surroundings.
Draw, label, and interpret reaction profiles for exothermic and endothermic reactions, correctly identifying the activation energy.
Explain activation energy as the minimum energy required for a chemical reaction to proceed.
Interpret data from charts and graphs related to reaction energy profiles.
Calculate overall energy changes in a chemical reaction by analyzing and summing bond breaking and bond making energies.
Perform required arithmetic computations to determine reaction energy changes accurately.
Revision notes
1
Energy Changes and Reaction Profiles
6 key terms
Practise with past papers
Key terms & definitions
Previous topic: Evolution of the Earth's Atmosphere
Pollution Mitigation and Chemical Formulae
Next topic: Evidence and Causes of Climate Change
Climate Change Impacts and Mitigation