Exothermic Reactions and Energy Diagrams

Exothermic Reactions and Energy Diagrams

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers unit 6.2, focusing on energy diagrams for endothermic and exothermic processes. It reviews the definitions and applications of these processes, explaining how energy diagrams visually represent them. The tutorial details the characteristics of exothermic reactions, where heat leaves the system, and endothermic reactions, where heat is absorbed. It also includes a problem-solving section to apply these concepts, emphasizing the importance of understanding energy changes in chemical reactions.

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 visually represent the energy changes in a reaction

To calculate the exact amount of energy in a reaction

To identify the reactants and products in a reaction

To determine the speed of a chemical reaction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following indicates an exothermic reaction on an energy diagram?

The potential energy of the products is higher than the reactants

The potential energy of the reactants is higher than the products

The activation energy is zero

The diagram shows a flat line

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an exothermic reaction, what happens to the heat?

It is released into the surroundings

It is absorbed by the system

It remains constant

It is converted into light

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

It is the energy absorbed by the products

It is the energy released during the reaction

It is the energy required to start a reaction

It determines the speed of the reaction

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which side of a chemical equation would you find heat in an exothermic reaction?

On the reactant side

On the product side

Heat is not shown in the equation

In the middle of the equation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a positive Delta H value indicate in a chemical reaction?

The reaction is exothermic

The reaction is endothermic

The reaction is at equilibrium

The reaction is spontaneous

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does an uphill curve on an energy diagram indicate?

An exothermic reaction

An endothermic reaction

A reaction at equilibrium

A spontaneous reaction

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?