Energetics

Cards (8)

What is standard enthalpy change of formation? 
The enthalpy change when one mole of a substance is formed from its constituent elements with all reactants and products in standard states under standard conditions
What is the standard enthalpy change of combustion?  
The enthalpy change when one mole of a substance is completely burned in oxygen with all reactants and products in standard states under standard conditions
What is Hess' Law? 
The enthalpy change for a reaction is independent of the route taken
What is enthalpy?  
A measure of the heat content of a substance
What is enthalpy change?  
The change in heat content at constant pressure
What is the standard enthalpy change of neutralisation? 
The enthalpy change when one mole of water is formed in a reaction between an acid and an alkali under standard conditions
What is bond enthalpy?  
The enthalpy change to break one mole of covalent bonds in the gaseous state
What is the standard enthalpy change of reaction?  
The enthalpy change for a reaction with the quantities shown in the chemical equation