Thermodynamics Flashcards

1
Q

what is enthalpy of lattice formation

A

Standard enthalpy change when 1 mole of an ionic crystal lattice is formed from its constituents ions in gaseous form

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2
Q

what is enthalpy of lattice dissociation

A

Standard enthalpy change when 1 mole of an ionic crystal lattice form is separated into its constituents in gaseous form

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3
Q

what is the enthalpy change of formation

A

Energy transferred when 1 mile of the compound is formed from its elements under standard conditions ( 298k and 100kpa) , all reactants and products being in their standard states

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4
Q

what is enthalpy of atomisation

A

Is the enthalpy change when 1 mole of gaseous atoms is formed from the element in its standard states

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5
Q

what is bond dissociation enthalpy

A

Standard molar enthalpy change when one mole of a covalent bond is broken into two gaseous atoms

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6
Q

what is the first ionisation enthalpy

A

Enthalpy change required to remove 1 mole of electrons from 1 mole of gaseous atoms to form 1 mole of gaseous ions with a +1 charge

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7
Q

second ionisation enthalpy

A

the enthalpy change to remove 1 mole of electrons from one mole of gaseous +1 ions to produce one mole of gaseous 2+ ions

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8
Q

what is the first electron affinity

A

Enthalpy change that occurs when 1 mole of gaseous atoms gain 1 mole of electrons to form 1 mole of gaseous ions with a -1 charge

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9
Q

what is the second electron affinity

A

the enthalpy change when one mole of gaseous 1- ions gains one electron per ion to produce gaseous 1- ions

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10
Q

what is enthalpy change

A

heat energy at constant pressure

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