Some air is trapped in a metal container with a lid that fits tightly. The container is then heated strongly behind a safety screen. As the pressure of the air inside the container increases, the lid is forced off. What causes the pressure of the air inside the container to increase?
- AEach air particle expands and takes up more room.
- BThe air particles move more quickly.
- CThe number of particles inside the container increases.
- DThe volume occupied by the air decreases.