3.1.9 - Rate equations

Question 1

Define order of reaction

Answer 1

The sum of powers to which the concentration is raised to in the rate equation

Question 2

What is the gradient of a lnk against 1/T graph equal to?

Answer 2

-Ea/R

Question 3

How do you figure out the rate determining step?

Answer 3

The step where its reactants are present in the rate equation/overall eqaution

Question 4

Explain how the graph shows the reaction is zero order with respect to___ (2)

Answer 4

1. Graph has constant gradient
2. Rate of reaction does not change as the concentration of ___ changes

Question 5

What must be done to each sample before it is titrated with an alkali? (2)

Answer 5

1. Stop the reaction
2. By cooling

Question 6

How can you tell H+ acts as a catalyst?

Answer 6

It is in the rate equation, but does not appear in the overall equation

Question 7

What is k in the rate equation equal too?

Answer 7

Gradient of the graph