Kinetics Flashcards
1
Q
what is the activation energy
A
a minimum energy neeeded for a reactio to occour
2
Q
what is a catalyst
A
a substance that speeds up a reaction but is chemically unchanged at the end. They work by providing an alternate reaction pathway with a lower activation energy.
3
Q
define the rate of reaction
A
change in concentration or a reactant or product per unit time
4
Q
what is collision theory
A
for a reaction to occour, particals must sucessfully collied with the required minimum activation energy at the correct orientation
5
Q
what ways can you increase rate of reaction
A
increasing temperature
increasing concentration
increasing preassure
increasing surface area
using a catalyst
6
Q
What is enthalpy
A
a change in energy under constant pressure.
