1)Enthalpy Change Of Reaction:Enthalpy change when molar quantities of reactants,as stated in the balanced stoichiometric equation,react together.
2)Standard Enthaply Change Of Neutralisation:Enthalpy Change when one mole of water is formed during the neutralisation between an acid and a base under standard conditions of 1 atm and 298K.
3)Standard Enthalpy Change of Formation:Enthalpy Change of one mole of a pure compound is formed from its constituent elements in their standard states under standard conditions of 1 atm and 298K.
4)Standard Enthalpy Change Of Combustion:Enthalpy Change when one mole of a substance is completely burnt in excess oxygen under standard conditions of 1 atm and 298K.
5)Bond dissociation Energy,B.E:Energy required to break one mole of covalent bonds between 2 atoms in the gaseous state.
6)Standard Enthalpy Of Atomisation:Enthalpy change when one mole of separate gaseous atoms are produced from the elements in its standard state under standard conditions of 1 atm and 298K.
7)First Ionisation Energy,I.E:Minimum Energy required to remove one mole of electrons from one mole of gaseous atoms producing one mole of gaseous singly charged positive ions.
8)Electron Affinity,E.A:Enthalpy change when one mole of gaseous atoms or negatively charged ion gain one mole of electrons.
9)Lattice Energy,L.E:Enthalpy change when one mole of ionic crystalline solid is formed from its separate gaseous ions under standard conditions of 1 atm and 298K.
10)Standard Enthalpy Change Of Hydration:Enthalpy Change when one one mole of free gaseous ions is surrounded by water molecules and form a solution at infinite dilution,under standard conditions of 1 atm and 298K.
11)Standard Enthalpy Change Of Solution:Enthalpy chcange when one mole of solute is completely dissolved in a solvent to form a infinitely dilute solution under standard conditions of 1 atm and 298K.
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