Enthalpy

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Lattice Enthalpy
The enthalpy change that accompanies the formation of one mole of an ionic compound from its gaseous ions under standard conditions (-exothermic)
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Enthalpy change of formation
The enthalpy change that takes place when one mole of a compound is formed form its constituent elements in their standard states (-exothermic)
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Enthalpy change of atomisation
The enthalpy change that takes place when one mole of gaseous atoms forms from the elements in their standard states (+endothermic)
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Ionisation energy
The enthalpy change accompanying the removal of one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions (+endothermic)
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Electron affintiy
The enthalpy change that accompanies the addition of one electron to each atom in one mole of gaseous atoms to make one mole of gaseous 1- ions (-exothermic)
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Enthalpy change of solution
The enthalpy change that takes place when one mole of a compound is completely dissolved in water under standard states (-/+)
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Enthalpy change of hydration
The enthalpy changes that takes place when one mole of isolated gaseous ions is dissolved in water forming on e mole of aqueous ions (-exothermic) (hydration = lattice + solution)
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Free energy change
free energy change = enthalpy change - temperature (in kelvin) x entropy change (of free energy change is negative reaction can take place spontaneously)
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Card 2

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The enthalpy change that takes place when one mole of a compound is formed form its constituent elements in their standard states (-exothermic)

Back

Enthalpy change of formation

Card 3

Front

The enthalpy change that takes place when one mole of gaseous atoms forms from the elements in their standard states (+endothermic)

Back

Preview of the back of card 3

Card 4

Front

The enthalpy change accompanying the removal of one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions (+endothermic)

Back

Preview of the back of card 4

Card 5

Front

The enthalpy change that accompanies the addition of one electron to each atom in one mole of gaseous atoms to make one mole of gaseous 1- ions (-exothermic)

Back

Preview of the back of card 5
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