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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Hess' Law |
The enthalpy change required in a reaction is independent of the route taken |
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Enthalpy of formation |
The enthalpy change when one mole of a compound is made from its elements in their standard states under standard conditions |
Exothermic |
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Enthalpy of atomisation |
The enthalpy change when one mole of gaseous atoms are made from an element in its standard state |
Endothermic |
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Enthalpy of hydration |
The enthalpy change when water molecules surround one mole of gaseous ions under standard conditions |
Endothermic |
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Enthalpy of solution |
The enthalpy change under constant pressure when one mole of a compound dissolves completely in water so that the ions don't interact |
Varies between exothermic and endothermic |
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First ionisation energy |
The energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous unipositive ions |
Endothermic |
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First electron affinity |
The energy required to add one mole of electrons to one mole of gaseous atoms to form one mole gaseous uninegative ions |
Exothermic |
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Bond dissociation enthalpy |
The enthalpy change when one mole of a particular covalent bond is broken into separate gaseous atoms |
Endothermic |
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Lattice enthalpy |
The enthalpy change when one mole of an ionic solid is formed from its gaseous ions |
Exothermic |
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Lattice enthalpy of dissociation |
The enthalpy change when one mole of an ionic solid compound is completely dissociated into its gaseous ions under standard conditions |
Endothermic |
