Kinetics

Question 1

Explain effect of increased temperature on rate of reaction

Answer 1

Particles must’ve more kinetic energy
Particles collide more frequently and with more energy
More likely to overcome the activation energy
Rate of reaction increases

Question 2

Effect of increased concentration of reactants on rate of reaction

Answer 2

Greater number of particles within a certain volume

Particles collide more frequently

Particles have a greater chance of successful collision

Rate of reaction increases

Question 3

Effect of increases surface area om rate of reaction

Answer 3

Greater number of particles exposed

Reactance particles collide more frequently

Greater chance of successful collisions

Rate increases

Question 4

Effect of increased pressure of gases on rate of reaction

Answer 4

Some number of gas particles in a smaller volume

Particles collide more frequently

Greate chance of successful collisions Rate

Rate of reaction increases

Question 5

Effect of addition of catalyst on rate of reaction

Answer 5

Catalyst provides an alternative pathways for the reaction

Alternative pathway has lower activation energy

Catalyst is not consumed during the reaction