Thermodynamics - definitions. (AQA CHEM)

All definitions for thermodynamics in unit 5 aqa chemistry. (bar the enthalpy of hydration).

  • Created by: Ajay
  • Created on: 07-01-13 20:17
enthalpy change
the heat taken in or released during a chemical or physical change that occurs at constant pressure
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enthalpy of atomisation
standard enthalpy change when one mole of gaseous atoms is formed
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ionisation enthalpy
the standard enthalpy change for the removal of an electron from a gaseous species, to form a positive ion and an electron, both gaseous
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bond dissociation enthalpy
the standard enthalpy change when a covalent bond is broken in a gaseous molecule to form two free gaseous radicals
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Electron affinity
e standard enthalpy change when an electron is added to an isolated gaseous atom
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enthalpy of lattice dissociation
the standard enthalpy change when one mole of a solid ionic lattice is separated into its gaseous ions
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standard enthalpy of formation
the enthalpy change when one mole of a compound is formed from its elements under standard conditions, reactants and products being in their standard states
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enthalpy of solution
the standard enthalpy change when one mole of an ionic solid dissolves in an amount of water large enough to ensure that the dissolved ions are so separated that they do not interact with each other
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standard molar bond dissociation enthalpy
the enthalpy change when one mole of bonds of the same type in a gaseous molecule, under standard conditions, is broken, producing free radicals
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Other cards in this set

Card 2

Front

standard enthalpy change when one mole of gaseous atoms is formed

Back

enthalpy of atomisation

Card 3

Front

the standard enthalpy change for the removal of an electron from a gaseous species, to form a positive ion and an electron, both gaseous

Back

Preview of the back of card 3

Card 4

Front

the standard enthalpy change when a covalent bond is broken in a gaseous molecule to form two free gaseous radicals

Back

Preview of the back of card 4

Card 5

Front

e standard enthalpy change when an electron is added to an isolated gaseous atom

Back

Preview of the back of card 5
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Comments

zain

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definitions not up to standard at all. wouldnt get very many marks using these

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