FUNDAMENTAL EQUILIBRIUM CONCEPTS

Previous class​

Chapter Outline

12.1 Chemical Reaction Rates

12.2 Factors Affecting Reaction Rates

12.3 Rate Laws

12.4 Integrated Rate Laws

12.5 Collision Theory

12.6 Reaction Mechanisms

12.7 Catalysis​

Multiple Choice

An elementary reaction has only one activation-energy peak and one activated complex.

• True

• False

Multiple Choice

What is the molecularity of the elementary step shown here?

• unimolecular

• bimolecular

• termolecular

Multiple Choice

A series of elementary steps that lead to an overall reaction is called a(n) ....

• reaction mechanism

• reaction combination

• combustion reaction

• exothermic reaction

Multiple Choice

How many elementary steps are in the reaction mechanism shown here?

• 1

• 2

• 3

Multiple Choice

What is collision theory?

• Molecules must collide in the correct orientation with enough energy to bond.

• Molecules need enough energy to collide and react.

• Atoms constantly collide and react.

• The minimum energy needed for atoms to react

Multiple Choice

Which PE Diagram represents an endothermic reaction?

• A

• B

Multiple Choice

What factors effect rate of reaction?

• Temperature, Concentration, Pressure and Energy

• Surface Area, Concentration, Energy and Pressure

• Temperature, Pressure, Concentration and Surface area

• Pressure, Surface area, Density and Energy

Multiple Choice

X → products

Pure substance X decomposes according to the equation above. Which of the following graphs indicates that the rate of decomposition is second order in X ?

Multiple Choice

The following integrated rate law could be used to find the the concentration of a ________________ order reactant at a certain time.

[A] = - kt + [A]₀

• zero

• first

• second

Multiple Choice

The graphs shown in the diagram indicate that reactant A is ________________ order.

• zero

• first

• second

Multiple Choice

How does a catalyst work in speeding up a reaction?

• by lowering the activation energy or reaction

• by giving them more energy

• by making them more available

• by increasing the activation energy or reaction

Multiple Choice

Catalysts may be in the state of ___________.

• Solid and liquid only

• Liquid and gases only

• Solid and gases only

• Solid, liquid or gases

Home

Open in new tab

Copy link