Question

what would happen to a fully inflated balloon if you placed it in the refrigerator overnight?
a. it would get larger in size because the air molecules inside the balloon speed up and spread out as the balloon cools.
b. it would get larger in size because the molecular motion of the air inside the balloon increases as the balloon cools.
c. it would get smaller in size because the air molecules slow down and get closer together as the balloon cools.
d. it would get smaller in size because the air molecules become smaller as the balloon cools.

Explanation:

When a balloon is placed in a refrigerator, the temperature drops. According to the kinetic - molecular theory, the motion of gas molecules is directly related to temperature. Lower temperature causes the air molecules inside the balloon to slow down and move closer together, reducing the volume of the gas and thus making the balloon smaller.

Answer:

C. It would get smaller in size because the air molecules slow down and get closer together as the balloon cools.