A tank contains 500 cubic cm of air. If 200 cubic cm of air is pumped OUT of the tank, what is the final volume of air left in the tank?
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Worked Solution
Step 1: Air is a gas.
Step 2: Gases do not have a definite volume; they expand to fill the container they are in.
Step 3: Even if some air is removed, the remaining air will expand to fill the 500 cubic cm tank.
Correct answer: 500 cubic cm
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