Reaction Profiles (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
What are reaction profiles?
What are reaction profiles?
Graphs showing how energy changes during a chemical reaction
Alternative name for reaction profiles
Alternative name for reaction profiles
Energy diagrams
Y-axis on reaction profile
Y-axis on reaction profile
Energy of the system
X-axis on reaction profile
X-axis on reaction profile
Reaction progress from reactants to products
What is activation energy?
What is activation energy?
Minimum energy required to start the reaction
What does the 'hump' represent in a reaction profile?
What does the 'hump' represent in a reaction profile?
Activation energy
Exothermic: reactant vs product energy level
Exothermic: reactant vs product energy level
Reactants are higher than products
Energy change sign in exothermic reactions
Energy change sign in exothermic reactions
Negative
Energy change in exothermic reactions
Energy change in exothermic reactions
Energy is released to surroundings
Endothermic: reactant vs product energy level
Endothermic: reactant vs product energy level
Reactants are lower than products
Energy change sign in endothermic reactions
Energy change sign in endothermic reactions
Positive
Energy change in endothermic reactions
Energy change in endothermic reactions
Energy is absorbed from surroundings