# Le Chatelier's principle: Effect of changing pressure

In this lesson, higher tier students will learn to interpret appropriate given data to predict the effect of pressure changes on given reactions at equilibrium.

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.A reversible reaction is exothermic in the forward reaction, the reverse reaction is... ?

1/6

Q2.Increasing temperature favours...

2/6

Q3.In a reaction that is exothermic in the forward direction, what happens to equilibrium when temperature is increased?

3/6

Q4.In a reaction involving solutions, if the concentration of a solute is decreased, in which direction will equilibrium shift to?

4/6

Q5.Which of the following is the state symbol for a solution?

5/6

Q6.In a closed system, equilibrium is the point in the reaction where the forward and reverse reactions are occurring at exactly the same ____________ ?

6/6

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.A reversible reaction is exothermic in the forward reaction, the reverse reaction is... ?

1/6

Q2.Increasing temperature favours...

2/6

Q3.In a reaction that is exothermic in the forward direction, what happens to equilibrium when temperature is increased?

3/6

Q4.In a reaction involving solutions, if the concentration of a solute is decreased, in which direction will equilibrium shift to?

4/6

Q5.Which of the following is the state symbol for a solution?

5/6

Q6.In a closed system, equilibrium is the point in the reaction where the forward and reverse reactions are occurring at exactly the same ____________ ?

6/6

# 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

Your video will re-appear on the next page, and will stay paused in the right place.

# 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:

# Le Chatelier's Principle: Effect of Changing Pressure

Please complete this exit quiz. This quiz will test your understanding of the topic - Le Chatelier's Principle: Effect of Pressure and previous topics.

Q1.How does increasing pressure increase rate of reaction?

1/5

Q2.Increasing pressure favours the side of a reaction with...

2/5

Q3.In a reversible reaction that is exothermic in the forward direction, what happens to the position of the equilibrium when a catalyst is added?

3/5

Q4.In a reversible reaction that is exothermic in the forward direction, why is the best yield at equilibrium obtained at low temperatures?

4/5

Q5.How does a catalyst speed up a reaction?

5/5

Quiz:

# Le Chatelier's Principle: Effect of Changing Pressure

Please complete this exit quiz. This quiz will test your understanding of the topic - Le Chatelier's Principle: Effect of Pressure and previous topics.

Q1.How does increasing pressure increase rate of reaction?

1/5

Q2.Increasing pressure favours the side of a reaction with...

2/5

Q3.In a reversible reaction that is exothermic in the forward direction, what happens to the position of the equilibrium when a catalyst is added?

3/5

Q4.In a reversible reaction that is exothermic in the forward direction, why is the best yield at equilibrium obtained at low temperatures?

4/5

Q5.How does a catalyst speed up a reaction?

5/5

# Lesson summary: Le Chatelier's principle: Effect of changing pressure

## Time to move!

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

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance