Chemical Energetics Flashcards
1
Q
Standard Enthaply change of reaction.
A
Standard Enthalpy Change of reaction is the heat energy ABSORBED or EVOLVED when molar quantities of reactants as stated in the thermochemical equation react together under standard conditions.
2
Q
Standard Enthalpy Change of Combustion
A
The standard enthalpy change of combustion is the energy CHANGE when ONE mole of a substance is completely burnt in excess oxygen under standard conditions.
3
Q
Standard Enthalpy Change of Neutralisation
A
The standard enthalpy change of neutralization is the energy change when
- one mole of water is formed during the neutralization of an acid and alkali
- under STANDARD conditions.
4
Q
Enthalpy Change of Formation
A
The standard enthalpy change of formation is the energy change when
- one mole of compound is formed from its constituent elements in their STANDARD STATES
- under standard conditions
5
Q
Standard Enthalpy Change of Formation of n element
A
Zero
