Reaction Rates

Question 1

What is the reaction rate equation?

Answer 1

amount of reactant used or product formed/time

Question 2

What 2 conditions need to be met for a collision to be met?

Answer 2

• The particles collide w/ the correct orientation

- The particles to have enough energy to overcome Ea

Question 3

What is the effect of concentration on the ROR?

Answer 3

• When concentration increases, the ROR increases because more molecules are in a given volume.
• Molecules are closer together so more frequently effective collisions occur.

Question 4

What is the effect of the pressure of gas on the ROR?

Answer 4

• When a gas is compressed into a smaller vol, the pressure increases, the ROR increases.
• The gas molecules are closer together and collide more so more effective collisions occur.

Question 5

what measurable properties change?

Answer 5

• gas
• vol of gas
• mass of reactants/products
• colour