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FUNDAMENTAL EQUILIBRIUM CONCEPTS

FUNDAMENTAL EQUILIBRIUM CONCEPTS

Assessment

Presentation

Chemistry

University

Medium

Created by

Luis Bello

Used 4+ times

FREE Resource

49 Slides • 12 Questions

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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

3

Multiple Choice

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

1

True

2

False

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Multiple Choice

Question image

What is the molecularity of the elementary step shown here?

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unimolecular

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bimolecular

3

termolecular

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Multiple Choice

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

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reaction mechanism

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reaction combination

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combustion reaction

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exothermic reaction

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Multiple Choice

Question image

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

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1

2

2

3

3

7

Multiple Choice

What is collision theory?

1

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

2

Molecules need enough energy to collide and react.

3

Atoms constantly collide and react.

4

The minimum energy needed for atoms to react

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Multiple Choice

Question image

Which PE Diagram represents an endothermic reaction?

1

A

2

B

9

Multiple Choice

What factors effect rate of reaction?

1

Temperature, Concentration, Pressure and Energy

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Surface Area, Concentration, Energy and Pressure

3

Temperature, Pressure, Concentration and Surface area

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Pressure, Surface area, Density and Energy

10

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 ?

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2
3
4

11

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

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zero

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first

3

second

12

Multiple Choice

Question image

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

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zero

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first

3

second

13

Multiple Choice

How does a catalyst work in speeding up a reaction?

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by lowering the activation energy or reaction

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by giving them more energy

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by making them more available

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by increasing the activation energy or reaction

14

Multiple Choice

Catalysts may be in the state of ___________.

1

Solid and liquid only

2

Liquid and gases only

3

Solid and gases only

4

Solid, liquid or gases

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