Question #18
A scientist has a container filled with carbon dioxide gas. The particles of this gas are far apart, move
quickly, and bouncing off the container walls. Then the particles slow down and collect at the bottom
the container, such that they are close together and vibrating in a rigid structure.
What caused this change?
A
The temperature increased.
B The container was opened.
C The temperature decreased.
D
None of these is correct
