Definitions of enthalpy change
Descriptions of the different typed of enthalpy changes.
- Created by: mitchell
- Created on: 25-01-13 21:09
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- Enthalpy Change
- The standard enthalpy of formation is the enthalpy change when one mole of a compound is formed from its elements under standard conditions in their standard states
- The lattice formation enthalpy is the standard enthalpy change when one mole of solid ionic compound is formed from its gaseous ions
- The first ionisation energy is the standard enthalpy change when one mole of gaseous atoms is converted into a mole of gaseous ions each with a single positive charge
- The standard enthalpy of atomisation is the enthalpy change which accompanies the formation of one mole of gaseous atoms from the element in its standard state under standard conditions
- The first electron affinity is the standard enthalpy change when a mole of gaseous atoms is converted to a mole of gaseous ions, each with a single negative charge.
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