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10 cards from this deck
Energy to break 1 mole of a bond type in gaseous molecule
Endothermic - requires energy input
Positive (endothermic process)
Negative (exothermic, energy released)
Triple > double > single (higher bond enthalpy)
ΔrH\Delta_r HΔrH = bonds broken - bonds made
They vary with chemical environment/molecular structure
All species must be gaseous molecules
When bond making releases more energy than bond breaking needs
Always positive (breaking bonds is endothermic)
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