KA7- Kintetics

Question 1

What does the rate of reaction normally depend on?

Answer 1

Concentration of the reactants

Question 2

Wjat does zero order with respect to A mean?

Answer 2

That by increasing the concentration of A it has no effect in the rate of reaction

Question 3

What does first order with respect to A mean?

Answer 3

If doubling the conc. of A it doubles the rate of reaction

Question 4

What is the rate constant?

Answer 4

k

not to be confused with K (capital) which is equilibrium constant

Question 5

How do you use notation to show that a reactant is to the 2nd order?

Answer 5

[A]^2

Question 6

What is the overall order of a reaction?

Answer 6

It is the sum of the sum of the powers to which the conc. of the reactants are raised in the rate equation

Question 7

How can the order of the rate of reaction be determined?

Answer 7

Only through experiemental data

Question 8

Does a reaction usually happen in one step?

Answer 8

No it is called the reaction mechanism

Question 9

What is the rate of the reaction dependent on?

Answer 9

The rate determining step- the slowest step

Question 10

For orders 1 to 4 what should the units be for the rate?

Answer 10

1st – s^-1
2nd – lmol^-1s^-1
3rd – l^2mol^-2s^-1
4th –l^3mol^-3s^-1