1

The diagram below shows a closed container containing air.

Which of the following changes will occur if the air in the container is heated?

 
1) The air particles move faster.
2) The air particles collide into each other at higher speeds.
3) The spaces between the air particles become very small.

    • 1) and 2) only
    • 1) and 3) only
    • 2) and 3) only
    • 1), 2) and 3)