Studied by 4 peopleEnthalpy change of formation
The enthalpy change when 1 mole of a compound is formed from its elements in their standard states under standard conditions
Enthalpy change of dissociation
the nethalpy change when all the bonds of the same type in 1 mole of gaseous molecules are broken
lattice enthalpy of formation
the enthalpy change when 1 mole of a solid ionic compound is formed from its gasous ions under standard conditions
lattice enthalpy of dissociation
the enthalpy change when 1 mole of a solid ionic compound is completely dissolved into its gaseous ions under standard conditions
enthalpy change of 1st ionisation
the enthalpy change when 1 mole of gaseous 1+ ions are formed from gaseous atoms
enthalpy change of 2nd ionisation
The enthalpy change when 1 mole of gaseous 2+ ions are formed from 1 mole of gaseous 1+ ions
enthalpy change of atomisation of an element
The enthalpy change when 1 mole of a gaseous atoms is formed from an element in its standard states
enthalpy change of atomisation of a compound
The enthalpy change when 1 mole of a compound in its standard states is converted to gaseous atoms
enthalpy change of 1st electron affinity
The enthalpy change when 1 mole of gaseous 1- ions are formed from 1 mole of gaseous atoms
enthalpy change of 2nd electron affinity
The enthalpy change when 1 mole of gaseous 2- ions are formed from 1 mole of gaseous 1- ions
enthalpy change of hydration
The enthalpy change when 1 mole of aqueous ions are formed from 1 mole of gaseous ions
enthalpy change of solution
The enthalpy change when 1 mole of a solute is dissolved in enough solvent that when there is further dilution, there is no more enthalpy change
entropy
the measure of disorder
what does a thing having more entropy mean
it has more disorder
what state has the least entropy
solid
what states have the most entropy
liquid and gas
entropy change calculation
ΔS = Sproducts - Sreactants
ΔS is in JK^-1mol-1
what does the gibbs free energy calculation tell
if a reaction is feasible
gibbs free energy calculation
ΔG (Jmol^-1) = ΔH (Jmol^-1) - TΔS (JK^-1mol^-1)
what is ΔG when a reaction is feasible
0 or negative
What may have an effect on feasibility
Temperature
The temperature at which a reaction becomes just feasible can be calculated.
What is ΔG
What calculation is used
ΔG = 0
T = ΔH / ΔS
Note
Flashcard