Cornell Notes Topic: Energy and Gases Explain how the pressure in a container of gas is affected when the volume is changed. Explain the relationship between the temperature and pressure of a gas. Questions/Main Ideas: Bell Work Gas Variables Temperature Moles Volume What causes gas Pressure? Scenarios (a) If you increase the temperature, what happens to the gas pressure? (b) Why does the pressure drop when you increase the volume? What are some characteristics of gas particles? (c) Why does an increase in the number of molecules increase the pressure? (d) Why does the pressure drop when you increase the volume of gas sample? Summary: