A gas is compressed into a smaller volume at constant temperature. Which statement correctly explains why the pressure increases?

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Question

A gas is compressed into a smaller volume at constant temperature. Which statement correctly explains why the pressure increases?

Accepted Answer

B. The gas particles collide with the container walls more frequently — When volume decreases at constant temperature, the particles have less space to travel, so they collide with the container walls more frequently, increasing pressure. The speed and kinetic energy of the particles remain unchanged because temperature is constant. Option A is incorrect because particle size does not change during compression.

Answer

B. The gas particles collide with the container walls more frequently

Answer

C. The gas particles slow down and transfer more energy per collision

Answer

D. The gas particles gain kinetic energy during compression

Answer

A. The gas particles become larger and collide more forcefully

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