Energetics (AQA A-Level Chemistry): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
What is bond energy?
What is bond energy?
Energy required to break one mole of a specific bond in gaseous state
Other names for bond energy
Other names for bond energy
Bond enthalpy, bond dissociation energy
Units of bond energy
Units of bond energy
kJ/mol (kilojoules per mole)
What state must molecules be in for bond energy?
What state must molecules be in for bond energy?
Gaseous state
What does bond energy measure?
What does bond energy measure?
Bond strength in a chemical bond
Energy change when breaking bonds
Energy change when breaking bonds
Requires energy (energy input needed)
Process type when breaking bonds
Process type when breaking bonds
Endothermic process
Energy change when forming bonds
Energy change when forming bonds
Releases energy (energy output)
Process type when forming bonds
Process type when forming bonds
Exothermic process
Overall energy change of reaction depends on
Overall energy change of reaction depends on
Difference between energy required to break bonds & energy released forming bonds