- Total mass of the gas
- Pressure of the gas
- Temperature of the gas
- Volume of the gas
Boyle's Law is the rule for a fixed mass of gas at constant temperature.
Here is the graph to show how volume varies with pressure:
It's not rocket science. High pressure means that you are squeezing the the gas so the volume must go down.
The mathematical pattern is:
- Volume is inversely proportional to pressure
- pV = a constant
- p1V1 = p2V2
- Double the pressure, halve the volume
You need to know how to draw further curves on the graph
- Above the existing curve for higher temperature - the particles will be moving faster pushing outwards into a bigger volume and causing more pressure
- Below the existing curve for lower temperature
