In a sealed container, which property rises as density increases?

In a sealed container, which property rises as density increases?

• A. Temperature
• B. Volume
• C. Pressure
• D. Mass

Answer: (C)

In a sealed container, the volume is fixed so density changes reflect how many gas particles are in the same space. When density increases, there are more particles in the same volume, causing more frequent and forceful collisions with the container walls. Those collisions are what create pressure, so pressure rises as density increases. This relationship is consistent with the idea that, at a given temperature, pressure is proportional to density (P ≈ ρRT/M). Volume and mass aren’t necessarily increasing on their own in this setup, so they don’t have to rise to cause the change in pressure.

In a sealed container, the volume is fixed so density changes reflect how many gas particles are in the same space. When density increases, there are more particles in the same volume, causing more frequent and forceful collisions with the container walls. Those collisions are what create pressure, so pressure rises as density increases. This relationship is consistent with the idea that, at a given temperature, pressure is proportional to density (P ≈ ρRT/M). Volume and mass aren’t necessarily increasing on their own in this setup, so they don’t have to rise to cause the change in pressure.