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AQA A-Level Chemistry Thermodynamics definitions - Statistics
General Stats
- This quiz has been taken 4 times
- The average score is 2 of 13
Answer Stats
| Enthalpy Change | Definition | Exothermic/Endothermic for most substances? | % Correct |
|---|---|---|---|
| Enthalpy of Formation | Enthalpy change when one mole of a substance is formed from its constituent elements with all products and reactants in standard states under standard conditions | Exothermic | 100%
|
| Enthalpy of Combustion | Enthalpy change when one mole of a substance is burned completely in Oxygen with all products and reactants in standard states under standard conditions | Exothermic | 33%
|
| Enthalpy of Atomisation | Enthalpy change when one mole of gaseous atoms is produced from an element in its standard state | Endothermic | 33%
|
| Enthalpy of Neutralisation | Enthalpy change when one mole of water is formed in a reaction between an acid and alkali with all products and reactants in standard states under standard conditions | Exothermic | 33%
|
| Enthalpy of (First) Electron Affinity | Enthalpy change when each atom in one mole of gaseous atoms gains one electron to form one mole of gaseous 1- ions | Exothermic for many non-metals | 0%
|
| Enthalpy of Ionisation (First) | Enthalpy change when each atom in one mole of gaseous atoms loses one electron to form one mole of gaseous 1+ ions | Endothermic | 0%
|
| Enthalpy of Hydration | Enthalpy change when one mole gaseous ions become hydrated (dissolved in water) | Exothermic | 0%
|
| Enthalpy of Vaporisation | Enthalpy change when one mole of a liquid is turned into a gas | Endothermic | 0%
|
| Enthalpy of Solution | Enthalpy change when one mole of an ionic solid dissolves in an amount of water large enough so that the dissolved ions are well separated and do not interact with each other | Both | 0%
|
| Lattice Enthalpy of Dissociation | Enthalpy change when one mole of a solid ionic compound is broken up into its constituent ions in the gas phase | Endothermic | 0%
|
| ;Lattice Enthalpy of Formation | Enthalpy change when one mole of a solid ionic compound is formed from its constituent ions in the gas phase | Exothermic | 0%
|
| Enthalpy of Fusion | Enthalpy change when one mole of a solid is turned into a liquid | Endothermic | 0%
|
| Bond dissociation Enthalpy | Enthalpy change when one mole of covalent bonds is broken in the gaseous state | Endothermic | 0%
|
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