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# O L A 8th Ch2 Gases

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• What is the def of temperature?? So, the higher the temp, the faster the particles/ BASED ON A GAS WHO CANNOT CHANGE VOLUME

### Transcript

• 1. Chapter 2
• 2. Warm-Up
• On the next left page, reflect on the following:
• Glass is an amorphous solid. How can you use that information to help explain why a glassblower can bend and shape a piece of glass that has been heated?
• 3. Today’s Topic & Question
• Topic: Behavior of Gases
• How are volume, temperature, and pressure of a gas related?
• 4. Measuring Gases
• Gases are able to easily compress
• In a helium tank, the amount of helium you get actually depends on the temperature and air pressure that day!
• 5. Volume
• Amount of space matter fills
• Volume of a gas = volume of the container
• 6. Temperature
• Measure of the average energy of motion of the particles in a substance
• Fast particles = greater energy = higher temp.
• 7. Pressure
• Force of its outward push on the walls of the container
• Measured in kilopascals (kPa)
• Force divided by area
• 8. Question for You
• What are 3 properties of a gas you can measure?
• 9. Relating Pressure & Volume
• Boyle’s Law
• When the pressure of a gas increases, its volume decreases. When the pressure of a gas decreases, its volume increases.
• 10. Relating Pressure & Temperature
• When the temperature of a gas increases, its pressure increases.
• When the temperature of a gas decreases, its pressure decreases.
• Page 53 Figure 13
• 11. Relating Volume and Temperature
• Charles’s Law
• When the temperature of a gas increases, the volume increases.
• When the temperature of a gas decreases, the volume decreases.
• 12.