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Description
Flashcards by emilyorr97, updated more than 1 year ago
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Created by emilyorr97
almost 10 years ago
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| Question | Answer |
| Standard enthalpy of formation | the enthalpy change when one mole of a compound is formed from its constituent elements under standard conditions, all products and reactants in their standard states |
| standard enthalpy of atomisation | the enthalpy change which accompanies the formation of one mole of gaseous atoms from the element in its standard state, under standard conditions |
| first ionisation energy | the standard enthalpy change when one mole of gaseous atoms is converted into one mole of gaseous ions, each with a single positive (unipositive) charge |
| second ionisation energy | refers to the loss of a mole of electrons from a mole of unipositive ions |
| first electron affinity | the standard enthalpy change when one mole of gaseous atoms is converted to one mole of gaseous ions, each with a single negative (uninegative) charge |
| second electron affinity | the enthalpy change when a mole of electrons is added to a mole of gaseous ions, each with a single negative charge, to form ions each with two negative charges |
| lattice formation enthalpy | the standard enthalpy change when one mole of solid ionic compound is formed from its gaseous ions |
| lattice dissociation enthalpy | when one mole of ionic compound separates into its gaseous ions |
| enthalpy of hydration | the standard enthalpy change when water molecules surround one mole of gaseous ions |
| enthalpy of solution | the standard enthalpy change when one mole of solute dissolves completely in sufficient solvent to form a solution in which the molecules or ions are far enough apart not to interact with each other |
| mean bond enthalpy | the enthalpy change when one mole of gaseous molecules each breaks a covalent bond to form two free radicals, averaged over a range of compound |
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