Question

Dry ice is solid carbon dioxide (
C
O
2
). As dry ice is heated, it goes directly from a solid to a gas through a process called sublimation.



Which sequence of boxes shows the change in motion of particles of dry ice during sublimation?



A.
box Z to box Y

B.
box Y to box X

C.
box Z to box X

D.
box X to box Z

Answers

GPT-5 mini
D

Sublimation is solid → gas, so particle motion increases: particles go from closely packed, vibrating in place (solid) to far apart and moving rapidly (gas). That corresponds to box X to box Z.