energetics all definitions Flashcards

1
Q

define the Standard Enthalpy Change of Reaction

A

the enthalpy change when molar quantities as stated in the equation react together under standard conditions

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2
Q

define the Standard Enthalpy of Formation

A

the enthalpy change when one mole of a compound is formed from its constituent elements in their standard states under standard conditions

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3
Q

define the Standard Enthalpy of Combustion

A

the enthalpy change when one mole of a substance is completely burned in oxygen under standard conditions

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4
Q

define the Standard Enthalpy of Neutralisation

A

the enthalpy change that accompanies the neutralisation of an aqueous acid by an aqueous base to form one mole of water under standard conditions

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5
Q

define First Ionisation Energy

A

the enthalpy change when one mole of electrons are removed from one mole of gaseous atoms to produce one mole of gaseous 1+ ions

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6
Q

define the Standard Enthalpy of Atomisation (of an element)

A

the amount of energy required to produce one mole of gaseous atoms from an element in its standard state under standard conditions

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7
Q

define Lattice Enthalpy of Formation

A

the enthalpy change when one mole of an ionic compound is formed from its constituent gaseous ions

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8
Q

define Lattice Enthalpy of Dissociation

A

the enthalpy change when one mole of an ionic compound is split up into its constituent gaseous ions

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9
Q

define First Electron Affinity

A

the enthalpy change when one mole of electrons is added to one mole of atoms in the gaseous state to form one mole of gaseous 1- ions

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10
Q

define Second Electron Affinity

A

the enthalpy change when one mole of electrons is added to one mole of 1- ions in the gaseous state to form one mole of gaseous 2- ions

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11
Q

define Enthalpy of Hydration

A

the enthalpy change when one mole of gaseous ions dissolve in water to form one mole of aqueous ions

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12
Q

define the Standard Enthalpy Change of Solution

A

the enthalpy change when one mole of a substance in its standard state is dissolved in water to form a solution where the ions are far enough apart not to interact, under standard conditions

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