Energy

  • Created by: Kat098
  • Created on: 23-04-18 18:54
Lattice enthalphy
the enthalphy change that accompanies the formation of one mole of an ionic lattice from its gaseous ions under standard conditions
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Standard enthalpy change of formation, fH
One mole of a compound is formed from its constituent eleements in their standard states
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Standard enthalpy change of atomonisation aH
One mole of gaseous atoms is formed from its element in its standard state
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First ionisation energy I1H
One mole of gaseous 1+ ions is formed from gaseous atoms
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Second ionisation energy I2H
One mole of gaseous 2+ ions are formed from one mole of gaseous 1+ ions
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First electron affinity EA1H
one mole of gaseous 1- ions is forned from gaseous atoms
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Second electron affinity EA2H
One mole of gaseous 2- ions is formed from gaseous 1- ions
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Standard enthalpy change of solution (solH)
One mole of a solute is completely dissolved in water under standard conditions
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Standard enthalpy change of hydration
Enthalpy change that takes place when dissolving one mole of gaseous ions in water
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Entropy, S
The degree of disorder in a system
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Standard entropy of a substance
entropy content of one mole of the substance under standard conditions
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Standard entropy change of reaction
The entropy change that accompanies a reaction in the molar quantities exxpressed in a chemical equation under standard conditions, and standard states
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Free energy change (G)
the balance between enthalpy, entropy and tenoerature. G = H -TS, when G is > 0 a reaction occurs
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Standard electrode potential of a half cell
The e.m.f of a half cell compared with the standard hydrogen half cell, measured at 298K with solution concentrations 1 moldm^-3 and gas pressure of 100kPa
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Card 2

Front

One mole of a compound is formed from its constituent eleements in their standard states

Back

Standard enthalpy change of formation, fH

Card 3

Front

One mole of gaseous atoms is formed from its element in its standard state

Back

Preview of the back of card 3

Card 4

Front

One mole of gaseous 1+ ions is formed from gaseous atoms

Back

Preview of the back of card 4

Card 5

Front

One mole of gaseous 2+ ions are formed from one mole of gaseous 1+ ions

Back

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