John Rapidly Pulls a Plunger Out of a Cylinder

question 42

Multiple Choice

John rapidly pulls a plunger out of a cylinder.As the plunger moves away,the gas molecules bouncing elastically off the plunger are

• A)rebounding at a higher speed than they would have if the plunger weren't removed.
• B)rebounding at a lower speed than they would have if the plunger weren't removed.
• C)rebounding at the same speed as they would have if the plunger weren't removed.
• D)Whether they speed up or slow down depends on how fast the plunger is removed.

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