Effect of changing surface area on rate of reaction

In this lesson, students will use data to describe and explain the effect of changing surface area on the rate of reaction.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Sodium thiosulphate reacts with hydrochloric acid to form sodium chloride, sulphur, water and sulphur dioxide. Which of the following is the state of sulphur at room temperature?

1/5

Q2.What are two reasons why the rate of the reaction increases as the concentration of hydrochloric acid increases when reacting with sodium thiosulphate?

Select two (2) boxes

2/5

Q3.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the independent variable (variable that is being changed)?

3/5

Q4.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the dependent variable (variable that is measured)?

4/5

Q5.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. Which of the following are the control variables? (Tick THREE)

Select three (3) boxes

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Sodium thiosulphate reacts with hydrochloric acid to form sodium chloride, sulphur, water and sulphur dioxide. Which of the following is the state of sulphur at room temperature?

1/5

Q2.What are two reasons why the rate of the reaction increases as the concentration of hydrochloric acid increases when reacting with sodium thiosulphate?

Select two (2) boxes

2/5

Q3.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the independent variable (variable that is being changed)?

3/5

Q4.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. What is the dependent variable (variable that is measured)?

4/5

Q5.Hypothesis: Increasing the concentration of hydrochloric acid increases the rate of reaction when reacting with sodium thiosulphate. Which of the following are the control variables? (Tick THREE)

Select three (3) boxes

5/5

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Effect of Changing Surface Area on Rate of Reaction

Please complete this exit quiz. This quiz will test your understanding of Effect of Changing Surface Area on Rate of Reaction.

Q1.Which of the following marble chips has the largest surface area to volume ratio?

1/5

Q2.Calcium carbonate (marble chips) react with hydrochloric acid to produce calcium chloride, water and what gas?

2/5

Q3.Which of the following quantity can we measure to find the rate of reaction between calcium carbonate (marble chips) and hydrochloric acid?

3/5

Q4.Calculate the mean rate of reaction when 23 cm³ of gas is produced in 15 seconds.

4/5

Q5.In terms of collision theory, why do reactions using solid reactants with a large surface area to volume ratio have a faster rate of reaction?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Effect of Changing Surface Area on Rate of Reaction

Please complete this exit quiz. This quiz will test your understanding of Effect of Changing Surface Area on Rate of Reaction.

Q1.Which of the following marble chips has the largest surface area to volume ratio?

1/5

Q2.Calcium carbonate (marble chips) react with hydrochloric acid to produce calcium chloride, water and what gas?

2/5

Q3.Which of the following quantity can we measure to find the rate of reaction between calcium carbonate (marble chips) and hydrochloric acid?

3/5

Q4.Calculate the mean rate of reaction when 23 cm³ of gas is produced in 15 seconds.

4/5

Q5.In terms of collision theory, why do reactions using solid reactants with a large surface area to volume ratio have a faster rate of reaction?

5/5

Lesson summary: Effect of changing surface area on rate of reaction

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