A balloon is filled with air and tied closed. The balloon is placed in a refrigerator…
Physics · IGCSE · Cambridge (CIE) — Thermal physics
A balloon is filled with air and tied closed. The balloon is placed in a refrigerator.
What happens to the average speed of the air molecules and the pressure of the air inside the balloon as the temperature decreases?
average speed of air molecules | pressure of air | |
|---|---|---|
A | stays the same | decreases |
B | decreases | stays the same |
C | increases | increases |
D | decreases | decreases |
A
B
C
D
Answer
(D) D
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