Learning Objectives
- Pressure increases when temperature increases.
- Pressure increases when volume decreases.
- Pressure increases when particle number increases.
Use a simplified ideal gas relationship to model pressure changes.
Pressure Index
2400
Volume
5 L
Temperature
300 K
Particles
40
Formula
P ∝ nT / V
Try this
Increase pressure without adding more particles.
Try decreasing volume or increasing temperature to raise pressure.
What happened?
Pressure rises when particles move faster or are squeezed into a smaller volume.
Why?
The simplified relationship here is pressure proportional to particles and temperature, and inversely proportional to volume.