rate of reaction - effect of temperature on rate of reaction

Question 1

what does it mean if product has less energy than reactants?

Answer 1

it is an exothermic reaction so energy is released during reaction

Question 2

what is activation energy?

Answer 2

minimum amount of energy the particles must have in order to react

Question 3

what do the size of arrows on particle drawings mean?

Answer 3

shows energy of each particle

Question 4

what happens if particles collide with low energy?

Answer 4

they cannot overcome activation energy barrier so won’t collide successfully. no reaction

Question 5

what happens if particles collide with high energy?

Answer 5

they will overcome activation energy barrier so collide successfully and reaction will take place

Question 6

what happens as we increase temperature?

Answer 6

it will increase rate of reaction. energy if particles will increase so they will move faster and have a greater number of collisions per second. each collision = more nervy so more particles can overcome activation energy barrier and collide succesfully

Question 7

rate of reaction increases with temp?

Answer 7

proportional