LT#5: Rate Laws

Question 1

What influence does a zero order reactant have on the reaction rate?

Answer 1

None.

The reaction rate is independent of the concentration of this reactant.

Question 2

What influence does a first order reactant have on the reaction rate?

Answer 2

There is a proportional increase in reactant concentration and reaction rate.

Question 3

What influence does a second order reactant have on the reaction rate?

Answer 3

The reaction rate increases by the square of the concentration increase.

Question 4

Define Rate Law

Answer 4

Math equation showing how all the reactants influence the reaction rate.

Question 5

What does the value of the rate constant (k) indicate?

Answer 5

The inherent speed of the reaction.

The larger k is the faster the reaction.

Question 6

How do you determine the order of a reactant in a rate law?

Answer 6

By looking at two experimental trials where the reactant changes, but the others stay constant.

Question 7

How is the overall reaction order determined?

Answer 7

Adding all rate exponents together.