The enthalpy change when 1 mole of a compound is formed from its elements under standard conditions, all in gaseous states
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Enthalpy of combustion
The enthalpy change when 1 mole of a compound is completely burned in oxygen
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Enthalpy of atomisation (Eg?)
Enthalpy change when 1 mole of gaseous atoms are formed from the elements in their standard states under standard conditions= Eg 1/2 Br2 (l)--> Br (g)
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First ionisation energy (Eg?)
The enthalpy change when 1 mole of gaseous atoms are converted into 1 mole of gaseous positive ions= Eg Mg (g)--> Mg^+(g) + e^-
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Electron affinity (Eg?)
The enthalpy change when 1 mole of gaseous atoms are converted into 1 mole of gaseous negative ions= Eg O (g) + e^- -->O^-(g)
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Lattice enthalpy (Eg?)
The enthalpy change when 1 mole of solid ionic compound is formed from its gaseous ions= Eg Na^+(g) + Cl^-(g) --> NaCl (s)
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Lattice dissociation
The enthalpy change when 1 mole of solid ionic compound dissociates into its gaseous ions
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Enthalpy of hydration (Eg?)
The enthalpy change when 1 mole of gaseous ions are completely surrounded by water molecules = Eg Na^+ (g)--> Na^+ (aq)
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Enthalpy of solution (Eg?)
The enthalpy change when 1 mole of solute dissolves completely in sufficient solvent to form a solution of indefinite dilution= Eg NaCl (s)--> Na^+ (aq) + Cl^- (aq)
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Mean bond enthalpy
The enthalpy change when 1 mole of gaseous molecules break their covalent bonds, averaged over a range of compounds
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Enthalpy of neutralisation
The enthalpy change when 1 mole of water is formed from its ions in dilute solution, as a result of an acid and alkali reacting
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Other cards in this set
Card 2
Front
The enthalpy change when 1 mole of a compound is completely burned in oxygen
Back
Enthalpy of combustion
Card 3
Front
Enthalpy change when 1 mole of gaseous atoms are formed from the elements in their standard states under standard conditions= Eg 1/2 Br2 (l)--> Br (g)
Back
Card 4
Front
The enthalpy change when 1 mole of gaseous atoms are converted into 1 mole of gaseous positive ions= Eg Mg (g)--> Mg^+(g) + e^-
Back
Card 5
Front
The enthalpy change when 1 mole of gaseous atoms are converted into 1 mole of gaseous negative ions= Eg O (g) + e^- -->O^-(g)
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