Part IV: Relationships Between Gas Variables Scientists in the late 1800’s noted relationships between many of the state variables related to gases (pressure, volume, temperature), and the number of gas particles in the sample being studied. They knew that it was easier to study relationships if they varied only two parameters at a time and “fixed” (held constant) the others. Use the simulation (PhET) to explore these relationships.
Part IV: Relationships Between Gas Variables
Scientists in the late 1800’s noted relationships between many of the state variables related to gases (pressure, volume, temperature), and the number of gas particles in the sample being studied. They knew that it was easier to study relationships if they varied only two parameters at a time and “fixed” (held constant) the others. Use the simulation (PhET) to explore these relationships.
|
Variables |
Constant Parameters |
Relationship |
Proportionality (see hint below) |
|
pressure, volume |
Pressure- 11.8 atm Particle- 100 |
Inversely proportional |
directly proportional or inversely proportional |
|
volume, temperature |
|
|
directly proportional or inversely proportional |
|
volume, number of gas particles |
|
|
directly proportional or inversely proportional |
Hint: A pair of variables is directly proportional when they vary in the same way (one increases and the other also increases). A pair of variables is inversely proportional when they vary in opposite ways (one increases and the other decreases). Label each of your relationships in the table above as directly or inversely proportional.
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