Multiple choice

As you blow into a balloon, what happens?

  1. Temperature Increases

  2. Pressure Increases

  3. Pressure Decreases

  4. Both the temperature and pressure increases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blowing into a balloon adds more gas particles into a fixed space, which increases the frequency of collisions with the walls, thereby increasing pressure. The act of blowing also involves air that is typically warmer than the ambient air, and the work done on the gas can increase its internal energy.

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