1. Graphing Boyle’s Law
The relationship between pressure and volume is inversely proportional: when one goes up the other goes down.

2. Pressure and Temperature
When a gas is heated, the particles move faster and collide more often with each other and with the walls of their container. The pressure of the gas increases.

3. Graphing Gas Behavior
In an experiment, the temperature of a gas at a constant volume was varied. Gas pressure (in kilopascals) was measured after each 5-kelvin change in temperature. The data from the experiment are shown in the table.

4. Graphing Gas Behavior Graphing
Use the data to make a line graph. Plot temperature on the horizontal axis with a scale from 270 K to 300 K. Plot pressure on the vertical axis with a scale from 0 kPa to 25 kPa. (1 kPa = 1,000 Pa)

5. Graphing Gas Behavior Interpreting Data
What was the manipulated variable in this experiment?
Changing the temperature of a gas at constant volume changes its pressure in a similar way.

6. Graphing Gas Behavior Interpreting Data
What kind of trend do the data show?
Pressure increases with temperature.

7. Graphing Gas Behavior Drawing Conclusions
What happens to the pressure of a gas when temperature is increased at constant volume?
Gas pressure increases.

8. Gas Laws Activity
Click the Active Art button to open a browser window and access Active Art about gas laws.

9. End of Section: The Behavior of Gases