Edexcel AS Chemistry - Bond Enthalpy
- Created by: Booga
- Created on: 31-12-10 13:07
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BOND ENTHALPY
Exothermic Reactions- Give energy -
Endothermic Reactions- Absorb energy +
Bond Making- Releases energy (Exothermic) -
Bond Breaking- Requires energy (Endothermic) +
ΔH = H products - Hreactants (H=Energy)
(Δ = Change)
Specific Heat Capacity- The energy in joules (j) needed to raise the temperature of 1Kg of a substance by 1kelvin
E=mcΔT
E- Energy transfered
m- mass
c- specific heat capacity
ΔT- change in temperature
STANDARD ENTHALPY CHANGES
{STANDARD CONDITIONS= 298K temperature,…
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