CMB1004/L21 Reaction Kinetics

Question 1

What does the Maxwell-Boltzmann distribution describe?

Answer 1

Distribution of molecule speeds in gas or liquid

Question 2

What 2 factors does particle speed depend on?

Answer 2

Mass
Temperature

Question 3

What is the equation for kinetic energy?

Answer 3

KE = 0.5mv^2

Question 4

What is the equation for average kinetic energy?

Answer 4

KE(avg) = 1.5Kb*T

Question 5

What 3 major factors determine rate of reaction?

Answer 5

Temperature
(Enzymatic) catalysis
Concentration

Question 6

Give the rate equation for the equation:
A + B -> C + D

Answer 6

k = [A]^a[B]^b

Question 7

Describe a first order reaction.

Answer 7

A reaction in which a single atom or molecule determines the rate

Question 8

Describe a second order reaction.

Answer 8

When two molecules collide to determine the rate of reaction

Question 9

How can orders of reaction be found?

Answer 9

ONLY experimentally

Question 10

How is Kc calculated?

Answer 10

Kc = [products]^p/[reactants]^r

Question 11

What is Le Chatelier’s Principle?

Answer 11

When a system at equilibrium is subjected to disturbance, the composition of the system adjusts to minimise the disturbance