Energetics Year 11 Flashcards
1
Q
Exothermic
A
Energy LOST
Heat given OUT
2
Q
Endothermic
A
Energy TAKEN IN
Surroundings get COLDER
3
Q
Bendo Mexo
A
Breaking bonds is ENDOTHERMIC
Making bonds is EXOTHERMIC
4
Q
Activation energy is
A
The energy required to break the bonds in the reactants
5
Q
Calorimetry
A
When the energy value is measured during a reaction
6
Q
Enthalpy change
A
Δ h
Energy change
7
Q
Core practical: Measure temperature change of water by the combustion of alcohols
A
Fill beaker with known mass of water
Attach to stand and clamp
Place above alcohol burner
Light and measure temperature every 30s
