Lesson: Reactions on Surfaces

In this lesson, we will learn how to describe the effect of surface area on reaction rates, considering how collision frequency scales with surface area.

Worksheet: 5 Questions

Q1:

A student is performing a catalytic cracking of liquid paraffin, using porcelain chips as the catalyst. To accelerate the reaction, the surface area of the porcelain chips must be increased. Which of the following tools would be most suitable for this task?

Q2:

Consider a cube with sides that are exactly 10 cm long, as shown:

What is the volume of the cube?

What is the surface area of the cube?

If the cube were cut in two, would the total volume and the total surface area increase, decrease, or stay the same?

Q3:

The following combinations of shapes all have the same total volume. Which has the greatest total surface area?

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