module 3 Flashcards
1
Q
what is hess’s law
A
if a reaction can take place by two routes and the starting and finishing conditions are the same, the total enthalpy change is the same for each route
2
Q
what does collision theory state should happen for a reaction to take place
A
particles collide at the correct orientation with sufficient energy
3
Q
what is le chatelier’s principle
A
when a system in an equilibrium is subjected to an external change the system readjusts itself to minimise the effect of that change
