06 Energetics Flashcards

1
Q

Standard enthalpy change of formation

A

The enthalpy change when one mole of pure substance is formed from its constituent elements in their standard states under standard conditions

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2
Q

Standard enthalpy change of combustion

A

Enthalpy change when one mole of substance is completely burned in excess oxygen under stand conditions

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3
Q

Standard enthalpy change of neutralisation

A

Enthalpy change when 1 mole of water is formed when an acid neutralises a base and is carried out in an indefinitely dilute aqueous solution under standard conditions

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4
Q

Bond dissociation energy (bond energy)

A

Enthalpy change when one mole of covalent bonds between 2 atoms in a gaseous molecule are broken

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5
Q

Standard enthalpy change of atomisation

A

Enthalpy change when 1 mole of isolated gaseous atoms are produced from the element in its standard state under standard conditions

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6
Q

Electron affinity

A

Heat change when 1 mole of gaseous atoms or negatively charges ions gain an electron each

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7
Q

Lattice energy

A

Enthalpy change when one mole of ionic solid is formed from its isolated gaseous ions from an infinite distance apart under standard conditions

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8
Q

Enthalpy change of hydration

A

Enthalpy change when one mole of gaseous ions is dissolved in large amount of water under standard conditions

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9
Q

Enthalpy change of solution

A

Enthalpy change when one mole of a solute is completely dissolved in solvent to form an infinitely dilute solution under standard conditions

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