Unit 4 Kinetics

Question 0

For the reaction A + B —> C with a rate equation: rate = k[A]^n[B]^m , what is the overall order for the reaction?

Answer 0

n + m

Question 1

Give the rate equation for the reaction A + B —> C

Answer 1

rate = k[A]^n[B]^m

Question 2

What is the equation for rate of reaction?

Answer 2

(Change in concentration) / Time

Question 3

For the reaction A + B —> C, explain the effect of the order with respect to A being zero

Answer 3

The rate is unchanged by a change in concentration

Question 4

For the reaction A + B —> C, explain the effect of the order with respect to A being one

Answer 4

The rate is changed by the same proportion that the concentration of A is changed

Question 5

For the reaction A + B —> C, explain the effect of the order with respect to A being two

Answer 5

The rate is changed by (the proportion that the concentration of A is changed)^2

i.e [A] doubled, rate quadrupled

Question 6

What are the units for rate of reaction?

Answer 6

moldm^-3s^-1

Question 7

For the reaction A + B —> C with a rate equation: rate = k[A]^n[B]^m , if the overall order is zero, what are the units of k?

Answer 7

moldm^-3s^-1

Question 8

For the reaction A + B —> C with a rate equation: rate = k[A]^n[B]^m , if the overall order is one, what are the units of k?

Answer 8

s^-1

Question 9

For the reaction A + B —> C with a rate equation: rate = k[A]^n[B]^m , if the overall order is two, what are the units of k?

Answer 9

dm^3mol^-1s^-1