Chemical Equilibrium Concepts

Chemical Equilibrium Concepts

Assessment

Interactive Video

Chemistry, Science, Physics

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial introduces chemical equilibrium, focusing on the dynamic balance of reactions. It explains the Haber process for ammonia production, highlighting the reversible nature of reactions. Graphs are used to illustrate changes in reactant and product concentrations over time. The concept of dynamic equilibrium is further clarified using analogies, such as a revolving door in a department store. Practical examples, including nitrogen oxide reactions, demonstrate equilibrium in closed systems. The tutorial emphasizes that equilibrium involves ongoing reactions with balanced rates, not static conditions.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the short unit on chemical equilibrium?

The Haber process

The concept of dynamic balance

LaShawn Lea's principle

The production of hydrogen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the Haber process, what happens to the concentration of ammonia over time?

It fluctuates randomly

It decreases

It remains constant

It increases

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a flat line on a concentration graph indicate?

The concentrations are constant

The reaction is irreversible

The reaction is accelerating

The reaction has stopped

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a reversible reaction?

A reaction that stops at equilibrium

A reaction that only goes backward

A reaction that only goes forward

A reaction that can proceed in both directions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the analogy of a revolving door, what does the constant number of people inside the store represent?

A closed system

A dynamic equilibrium

A static equilibrium

An irreversible reaction

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color change indicates the presence of more nitrogen dioxide in the equilibrium?

Clear

Green

Brown

Blue

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when enough NO2 builds up in the system?

It remains as NO2

It turns into a solid

It escapes the system

It breaks down into N2O4

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