Enthalpy change definitions

Flashcards of enthalpy change definitions

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  • Created by: Abbey
  • Created on: 15-06-12 11:44

Enthalpy of FORMATION

I mole of substance is formed from its elements in their standard states

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Enthalpy of COMBUSTION

I mole of substance undergoes complete combustion in oxygen

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IONISATION Enthalpy

1 mole of GASEOUS ATOMS loses 1 mole of electrons

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ELECTRON AFFINITY

1 mole of GASEOUS ATOMS gains 1 mole of electrons

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Enthalpy of ATOMISATION

1 mole of GASEOUS ATOMS is produced from an element in standard states

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BOND DISSOCIATION Enthalpy

1 mole of covalent bonds is broken in the GASEOUS STATE

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Lattice Enthalpy of FORMATION

1 mole of SOLID IONIC COMPOUND is formed from its ions in the GASEOUS PHASE

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Lattice Enthalpy of DISSOCIATION

1 mole of a SOLID IONIC COMPOUND is broken up into its ions in the GASEOUS PHASE

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HYDRATION Enthalpy

1 mole of GASEOUS IONS becomes hydrated

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Enthalpy of SOLUTION

1 mole of an IONIC SOLID dissolves in enough water for no interaction to occur

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