Two Sealed Boxes Are Filled with Gas

question 14

Multiple Choice

Two sealed boxes are filled with gas.The first box contains more molecules moving faster and therefore has a higher pressure.The second box contains fewer molecules moving slower and therefore has a lower pressure.Why does the first box have a higher pressure?

• A) The more molecules, the higher the pressure.
• B) The more collisions against the side of the box, the higher the pressure.
• C) The fewer molecules, the higher the pressure.
• D) When there is high pressure, it is harder for molecules to move, so they create heat and pressure.
• E) There is no reason for the first box to have high pressure.

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