#### Transcript of 3.4 Graphing Gas Behavior

**3.4 Graphing Gas Behavior**

graph - a diagram that tells how two variables, or factors that change, are related

Temperature and Volume

Collecting data - Remember that Charles' law relates the temperature and volume of a gas that is kept at a constant pressure. As temp goes up, so does volume.

The line passes through the

origin

or

(0, 0)

and is

directly proportional.

Pressure and Volume

Remember that Boyle's Law states that gas pressure increases as volume decreases when temperature is kept constant.

If you graph Boyle's law, you will notice that pressure and volume

vary inversely.

Copy and answer the following questions:

1. What term describes the relationship of the graph of Charles' law.

2.How does the volume of a gas change when its temp is increased at a constant pressure.

3. What is the relationship between the pressure and the volume of a gas.

4. Compare and contrast the graph for Boyle's law and the graph for Charles' law. Make sure to include "directly proportional" and "vary inversely" in your explanation.

Directly proportional - a straight line that passes through the origin.

Vary inversely - as one value goes up the other value goes down.

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