Topic 6 Collision Theory & Rates of Reaction

Question 1

Kinetic Molecular Theory

Answer 1

Relates to solids, liquids and gases. States for gases that gas molecules are always moving quickly and randomly, they have very small volume, no attraction or repulsion to other particles, they transfer energy upon collision and the average energy of the particles determines the temperature of the gas.

Question 2

Rate of Reactions

Answer 2

Is the change of concentration of products or reactants over time

Question 3

Temperature

Answer 3

The higher the temperature the higher the rate of reaction because more molecules will have enough energy to undergo reaction

Question 4

Concentration and Pressure

Answer 4

They are directly proportional to rate of reaction as higher concentration means that particles are more likely to collide.

Question 5

Particle Size

Answer 5

Inversely proportional to rate of reactions as smaller particles have greater surface area and are more able to react

Question 6

Activation Energy

Answer 6

The minimum energy a collision must have for the reaction to take place.

Question 7

Maxwell-Boltzmann energy distribution curve

Answer 7

It shows the distribution of gas particles based on the energy

Question 8

Catalysts

Answer 8

Decrease the activation energy of the reaction by offering an alternative pathway for the reaction. So this increases the rate of reaction.