enthalpy definitions
- Created by: Tom
- Created on: 28-01-14 19:04
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- Enthalpy change definitions
- Formation
- Enthalpy change when one mole of a substance is formed from its constituent elements in their standard states
- Combustion
- Enthalpy change when one mole of a substance undergoes complete combustion under standard conditions
- Ionisation
- 1st: The FIE is the enthalpy change when one mole of gaseous atoms loses one electron per atom to produce one mole of gaseous 1+
- 2nd: when one mole of gaseous 2+ ions is produced from one mole of gaseous 1+ ions
- Electron affinity
- The enthalpy change when one mole of gaseous atoms gains one electron per atom to produce gaseous 1- ions
- Atomisation
- enthalpy change when one mole of gaseous atoms is produced from an element in its standard state
- lattice
- when one mole of a solid ionic compound is formed from its constituent elements
- Formation
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