F325 - Module 2

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Lattice enthalpy
Enthalpy change that accompanies the formation of 1 mole of an ionic compound from its gaseous ions under standard conditions.
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Enthalpy change of formation
Enthalpy change when 1 mole of compound is formed from its constituent elements in standard states under standard conditions.
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Enthalpy change of atomisation
Enthalpy change when 1 mole of gaseous atoms forms from the elements in its standard state.
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First ionisation energy
Energy required to remove the most loosely held electron from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+.
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Second ionisation energy
Energy required to remove a second electron from each ion in 1 mole of gaseous 1+ ions to give gaseous 2+ ions.
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First electron affinity
Energy released when 1 mole of gaseous atoms each acquire an electron to form 1 mole of gaseous 1- ions.
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Second electron affinity
Energy required to add an electron to each ion in 1 mole of gaseous 1- ions to produce 1 mole of gaseous 2- ions.
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Enthalpy change of solution
Enthalpy change when 1 mole of a compound completely dissolves in water under standard conditions.
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Enthalpy change of hydration
Enthalpy change when 1 mole of gaseous ions dissolve in sufficient water to give an infinitely dilute solution under standard conditions.
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Entropy
The quantitative measure of the degree of disorder of a system.
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Entropy change of reaction
Entropy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions.
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Free energy change
The balance between enthalpy, entropy and temperature for a process.
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Oxidation
Loss of electrons (increase in oxidation number).
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Reduction
Gain of electrons (decrease in oxidation number).
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Oxidising agent
A reagent that oxidises another species and is itself reduced.
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Reducing agent
A reagent that reduces another species and is itself oxidised.
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Standard electrode potential
The e.m.f measured when that metal / metal ion electrode is coupled to a hydrogen electrode under standard conditions.
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Card 2

Front

Enthalpy change when 1 mole of compound is formed from its constituent elements in standard states under standard conditions.

Back

Enthalpy change of formation

Card 3

Front

Enthalpy change when 1 mole of gaseous atoms forms from the elements in its standard state.

Back

Preview of the back of card 3

Card 4

Front

Energy required to remove the most loosely held electron from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+.

Back

Preview of the back of card 4

Card 5

Front

Energy required to remove a second electron from each ion in 1 mole of gaseous 1+ ions to give gaseous 2+ ions.

Back

Preview of the back of card 5
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