CH9 enthalpy
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13 Terms
What are the standard conditions for enthalpy change
Pressure= 100kPa
Temp= 298k
Concentration= 1moldm-3
Enthalpy change of formation
The enthalpy change that takes place when one mole of a compound is formed from its elements under standard conditions with all reactants and products in their standard states
Enthalpy change of combustion
The enthalpy change that takes place when one mole of a substance reacts completely with oxygen under standard conditions with all reactants and products in their standard states
Enthalpy change of reaction
The enthalpy change that accompanies reaction in molar quantities shown in a chemical equation under standard conditions with all reactants and products in their standard states.
Enthalpy change of neutralisation
The energy change that accompanies the reaction of an acid by a base to form one mole of water under standard conditions with all reactants and products i their standard states.
Equation for calculating energy change
Q=mc(delta)T
What is average bond enthalpy
The energy required to break one mole of a specified type of bond in a gaseous molecule.
Why are some bond enthalpies different for the same type of bond?
The bond is different in different environments
Note 
Flashcards (43)