# Fuel cells

In this lesson, students will describe how cells and batteries can be made and how the voltage can vary. Students will describe how a fuel cell works and write half equations for the electrode reactions in a fuel cell. We will also evaluate the use of hydrogen fuel cells in comparison to rechargeable cells and batteries.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the minimum amount of energy needed to start a reaction called?

1/5

Q2.What is the unit for bond energy values?

2/5

Q3.If the overall energy change is negative, what type of reaction is it?

3/5

Q4.During a reaction, 2462 kJ/mol of energy is needed to break bonds and 1363 kJ/mol of energy is released when bonds are made. What type of reaction is it?

4/5

Q5.During a reaction 988 kJ/mol of energy is needed to break bonds and 1892 kJ/mol of energy is released when bond are made. What type of reaction is it?

5/5

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the minimum amount of energy needed to start a reaction called?

1/5

Q2.What is the unit for bond energy values?

2/5

Q3.If the overall energy change is negative, what type of reaction is it?

3/5

Q4.During a reaction, 2462 kJ/mol of energy is needed to break bonds and 1363 kJ/mol of energy is released when bonds are made. What type of reaction is it?

4/5

Q5.During a reaction 988 kJ/mol of energy is needed to break bonds and 1892 kJ/mol of energy is released when bond are made. What type of reaction is it?

5/5

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

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# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Fuel Cells - Triple

This quiz will assess your knowledge from this lesson and previous lessons

Q1.What does reduction mean, in terms of electrons?

1/5

Q2.Which one of these half equations showing the reduction of hydrogen ions is correct?

2/5

Q3.Why is sodium more reactive than iron?

3/5

Q4.What is a simple cell made up of?

4/5

Q5.Which of these statements is not an advantage of hydrogen fuel cells?

5/5

Quiz:

# Fuel Cells - Triple

This quiz will assess your knowledge from this lesson and previous lessons

Q1.What does reduction mean, in terms of electrons?

1/5

Q2.Which one of these half equations showing the reduction of hydrogen ions is correct?

2/5

Q3.Why is sodium more reactive than iron?

3/5

Q4.What is a simple cell made up of?

4/5

Q5.Which of these statements is not an advantage of hydrogen fuel cells?

5/5

# Lesson summary: Fuel cells

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga