volume_mute

Effect of Temperature on Gas Pressure

publish date: 2026/05/19 19:14:45.288591 UTC

volume_mute

Raising the temperature of a confined gas will increase its pressure. According to kinetic theory, what two factors contribute to this increase?

Molecules become larger and heavier

Each collision with the wall becomes more forceful AND molecules hit the walls more frequently

Molecules stop moving and the gas becomes denser

The gas turns into a liquid and expands

Correct Answer

Each collision with the wall becomes more forceful AND molecules hit the walls more frequently

Explanation

Raising the temperature increases the average speed of the gas molecules. This has two effects: 1) faster-moving molecules exert a greater force upon collision, and 2) they travel faster, leading to more frequent collisions with the container walls. Both effects contribute to an increase in pressure.

Reference

Basic Physics: A Self-Teaching Guide

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Pressure in gases