Physical chemistry Flashcards
Physical chemistry (6 cards)
1
Q
define activation energy
A
the minimum amount of energy required to start a reaction
2
Q
what are standard conditions
A
298K (25*C) and 101kPa
3
Q
define enthalpy change of a reaction
A
enthalpy change associated with a stated equation
4
Q
define enthalpy change of formation
A
enthalpy change when one mole of a compound is formed from it’s constituent elements
5
Q
define enthalpy change of combustion
A
enthalpy change when one mole of a compound is burned in excess oxygen
6
Q
define enthalpy change of neutralisation
A
enthalpy change when one mole of water is formed in a neutralisation (acid-base) reaction
