chemistry

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give standard conditions
298k, conc 1moldm-3, 101 kPa
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define standard enthalpy change of reaction
the enthalpy change that occurs in a reaction between molar quantities of reactants in their standard states under standard conditions
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standard enthalpy change of atomisation
enthalpy change to form one mole of atoms in the gas phase
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standard enthalpy change of lattice formation
enthalpy change that occurs when one mole of an ionic compound is formed from ions of the elements in the gas phase
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standard enthalpy change of hydration
this is the enthalpy change that occurswhen one mole of gaseous ions is surrounded by water molecules to make a solution
5 of 12
define electron affinity
the enthalpy change that occurs when one mole of gaseous negative ions are formed from gaseous atoms of a substance by gaining an electron
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define ionisation energy
enthalpy change that occurs when one mole of gaseous positive ions are formed from gaseous atoms a substance by loosing an electron
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define enthalpy change of solution
enthalpy change that occurs when one mole of ionic compound dissolves in water to form a solution
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define enthalpy change of lattice breaking
the reverse of lattice formation it is the enthalpy change that occurs when one mole of an ionic compound is broken up into ions of the elements in the gas phase
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enthalpy of lattice breaking is ...
endothermic
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lattice of hydration is...
exothermic
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the more negative an enthalpy change of formation, the more
stable
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Card 2

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define standard enthalpy change of reaction

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the enthalpy change that occurs in a reaction between molar quantities of reactants in their standard states under standard conditions

Card 3

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standard enthalpy change of atomisation

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Card 4

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standard enthalpy change of lattice formation

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Card 5

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standard enthalpy change of hydration

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