LI-16-19:Rate of reactions Flashcards
1
Q
what is activation energy
A
the minimum energy required for a reaction to occur
2
Q
what is collison theory
A
for a chemical reaction to occur, the reacting particles must collide with one another
3
Q
what need to occur for Collison theory to happen
A
- make contact (collide)with each other
-collide with sufficient energy (greater than the activation energy) to break bonds within reactants - collide with the correct orientation to break the bonds within the reactants and allow the formation of new products
4
Q
how can temperature change the rate of reaction
A
temperature :increasing the temperature will increase the rate of reaction (adding heat) making the particles move around more
5
Q
how can surface area effect rate of reaction
A
surface area: Increasing the surface area of a solid reactant will increase the rate of reaction (crushing it up ) more particles avivanle to collide
6
Q
how can concertation effect rate of reaction
A
increasing the concentration will increasing rate of reaction more particles moving randomly
