Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?
-
Upload
darrell-howard -
Category
Documents
-
view
222 -
download
0
Transcript of Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?
![Page 1: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/1.jpg)
Quick Write p126:
What happens to a plastic bottle placed in the freezer overnight?
![Page 2: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/2.jpg)
Honor time limits
Actively participate (Have S.W.A.G.)
Listen respectfully to your colleagues
Place cell phones on vibrate or silent mode
Participants may write burning questions on a sticky note and place on the parking lot
BE PRESENT (Developing H.O.T.S. for Science)
![Page 3: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/3.jpg)
Burning Issues
Questions
Comments
Ideas to Share
![Page 4: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/4.jpg)
Charles’ LawCharles’ LawThe Temperature-Volume
Relationship
![Page 5: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/5.jpg)
Charles’ LawCharles’ Law• French chemist Jacques CharlesJacques Charles
discovered that the volume of a gas at constant pressure changes with temperature.
• As the temperature of the gas increases, so does its volume, and as its temperature decreases, so does its volume.
![Page 6: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/6.jpg)
C h a r l e s ’ L a wC h a r l e s ’ L a w
V= Volumek= Charles’ Law constant of ProportionalityT= Temperature in Kelvin
![Page 7: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/7.jpg)
ExplanationExplanation• Raising the temperature of a
gas causes the gas to fill a greater volume as long as pressure remains constant.
• Gases expand at a constant rate as temperature increases, and the rate of expansion is similar for all gases.
![Page 8: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/8.jpg)
ExampleExample• If the temperature of a given
amount of gas is doubled, for example, its volume will also double (as long as pressure remains unchanged).
2V = 22V = 2kkTT
![Page 9: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/9.jpg)
Charles’ LawCharles’ LawCharles’ Law can be modified to a convenient form by solving for k.
![Page 10: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/10.jpg)
Charles’ LawCharles’ LawIn a sample with volume V1 & temperature T1, changing either volume or temperature converts these variables to V2 & T2.
![Page 11: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/11.jpg)
Demonstration Demonstration of of
Charles’ LawCharles’ Law
![Page 12: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/12.jpg)
Charles’s law states that when a gas is kept at constant pressure, the volume of the gas will change with temperature.
In this experiment, balloons keep a small amount of gas (air) at an approximately constant pressure.
![Page 13: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/13.jpg)
As the balloons are dipped into a beaker of liquid nitrogen (-196°C; -320°F), the air inside them quickly cools. The volume of the air inside the balloons decreases as the temperature of the balloons decreases.
![Page 14: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/14.jpg)
As the balloons are dipped into a beaker of liquid nitrogen (-196°C; -320°F), the air inside them quickly cools. The volume of the air inside the balloons decreases as the temperature of the balloons decreases.
![Page 15: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/15.jpg)
As the balloons are dipped into a beaker of liquid nitrogen (-196°C; -320°F), the air inside them quickly cools. The volume of the air inside the balloons decreases as the temperature of the balloons decreases.
![Page 16: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/16.jpg)
As the balloons are dipped into a beaker of liquid nitrogen (-196°C; -320°F), the air inside them quickly cools. The volume of the air inside the balloons decreases as the temperature of the balloons decreases.
![Page 17: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/17.jpg)
Relationship of Relationship of Boyle’s Law and Boyle’s Law and
Charles’ LawCharles’ Law
![Page 18: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/18.jpg)
Temperature in kelvins
Pressuree in kilograms per square centimeter
![Page 19: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/19.jpg)
Practical Practical ApplicationsApplications
![Page 20: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/20.jpg)
Hot AIR BalloonHot AIR BalloonThe hot air that gives the hot-air
balloon its name is commonly created by a propane gas burner that sends
powerful jets of flame into the colorful rip-stop nylon envelope. Once the
balloon is aloft, its height is maintained by opening and closing the blast valve,
which controls the flow of the gas to the burner.
![Page 21: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/21.jpg)
Charles’ Law Charles’ Law CalculationsCalculations
![Page 22: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/22.jpg)
1. Calculate the decrease in temperature when 2.00 L at 20.0 °C is compressed to 1.00 L.2. 600.0 mL of air is at 20.0 °C. What is the volume at 60.0 °C?
3. A gas occupies 900.0 mL at a temperature of 27.0 °C. What is the volume at 132.0 °C?
4. What change in volume results if 60.0 mL of gas is cooled from 33.0 °C to 5.00 °C?
5. Given 300.0 mL of a gas at 17.0 °C. What is its volume at 10.0 °C?
6. A gas occupies 1.00 L at standard temperature. What is the volume at 333.0 °C?
7. At 27.00 °C a gas has a volume of 6.00 L. What will the volume be at 150.0 °C?
8. At 225.0 °C a gas has a volume of 400.0 mL. What is the volume of this gas at 127.0 °C?
Abbreviationsatm – atmospheremm Hg - millimeters of mercurytorr - another name for mm HgPa - Pascal (kPa = kilo Pascal)K - Kelvin°C - degrees Celsius
ConversionsK = °C + 2731 cm3 (cubic centimeter) = 1 mL (milliliter)1 dm3 (cubic decimeter) = 1 L (liter) = 1000 mLStandard Conditions0.00 °C = 273 K1.00 atm = 760.0 mm Hg = 101.325 kPa = 101,325 Pa
![Page 23: Quick Write p126: What happens to a plastic bottle placed in the freezer overnight?](https://reader036.fdocuments.in/reader036/viewer/2022062309/56649ece5503460f94bdb33e/html5/thumbnails/23.jpg)
This powerpoint was kindly donated to www.worldofteaching.com
http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.