Rate Of Reaction

Question 1

What is the Arrhenius equation?

Answer 1

k = Ae^(-Ea/RT)

Question 2

How does the Arrhenius equation rearrange with logs?

Answer 2

Ln k = ln A + (-Ea/RT)

Where -Ea/RT can form -Ea/R x1/T to form a linear equation

Question 3

What is the rate determining step?

Answer 3

The slowest step in the reaction mechanism of a multiple step reaction

Question 4

How would you know if a molecule is in the rate determining step?

Answer 4

It would show in the rate equation

Question 5

What does the power mean in the rate equation regarding the rate determining step?

Answer 5

The number of molecules involved?

Question 6

How is the second step determined?

Answer 6

The other molecules must be used in the second step as they appear in the final equation. Then fill the gaps by balancing the equation

Question 7

How does the order of a reaction affect the rate/concentration graph?

Answer 7

0 order - horizontal line
1 order - diagonal line
2 order - curve sloping upwards

Question 8

How would the order of a reaction affect a concentration/time graph

Answer 8

0 order - diagonal down
1 order - curve sloping downwards
2 order - steeper curve sloping downwards