Chemical Reaction Energy Concepts

Chemical Reaction Energy Concepts

Assessment

Interactive Video

Chemistry, Science, Physics

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

Professor Dave explains energy diagrams in chemical reactions, focusing on reactants, products, transition states, and activation energy. He distinguishes between exergonic and endergonic reactions, highlighting the role of energy diagrams in understanding reaction kinetics and thermodynamics. The video emphasizes the importance of these concepts in organic chemistry.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of an energy diagram in chemistry?

To measure the speed of a reaction

To depict the energy changes during a reaction

To calculate the mass of reactants

To determine the color of the products

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chemical reaction, what does the transition state represent?

The lowest energy point in the reaction

The final state of products

The initial state of reactants

The highest energy configuration during the reaction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On an energy diagram, what does the vertical axis typically represent?

Pressure

Temperature

Time

Potential energy

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an exergonic reaction, how do the energy levels of products compare to reactants?

Products have higher energy than reactants

Products have lower energy than reactants

Products have the same energy as reactants

Energy levels are not depicted in exergonic reactions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of activation energy in a chemical reaction?

It determines the color of the products

It is the energy released during the reaction

It is the energy required to reach the transition state

It measures the mass of the reactants

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a large activation barrier affect a chemical reaction?

It speeds up the reaction

It slows down the reaction

It has no effect on the reaction

It changes the color of the reactants

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an endergonic reaction, what must occur for the reaction to proceed?

Energy must be released

Energy must be absorbed

No energy change is required

The reaction must be exothermic

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?