kinetics

Question 1

what must particles do in order to react

Answer 1

collide with sufficient energy and the correct orientation

Question 2

do most collisions result in reaction

Answer 2

no

Question 3

define activation energy

Answer 3

minimum energy that particles must collide with for a reaction to occur

Question 4

what is the effect of increasing temperature on rate of reaction

Answer 4

increased temp = increased rate of reaction

much higher proportion of particles have energy greater than the activation energy = more successful collisions per second = increased rate

Question 5

what is the effect of increasing concentration/pressure on rate of reaction

Answer 5

increased concentration/pressure = increased rate

more particles in a given volume = more frequent successful collisions = increased rate

Question 6

what is a catalyst

Answer 6

substance which increases the rate of reaction but is not used up in the reaction