Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 –...
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Transcript of Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 –...
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Feb. 11, 2014
AGENDA:1 – Bell Ringer2 – Review HW
(Charles’)3 – CN: Lussac’s Law4 – Practice
Problems5 – Demos: Gas
Laws Boyle’s Law Charles’ Law Lussac’s Law
6 – Work Time
Today’s Goal:Students will be able to
calculate using Lussac’s Law.
Homework1. Lussac’s Law and
Mixed Practice HW2. Make up Week 22
Quiz by Friday.
![Page 3: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/3.jpg)
Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. 5 minutes!
![Page 4: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/4.jpg)
4 MINUTES REMAINING…
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Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. 4 minutes!
![Page 6: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/6.jpg)
3 MINUTES REMAINING…
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Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. 3 minutes!
![Page 8: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/8.jpg)
2 MINUTES REMAINING…
![Page 9: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/9.jpg)
Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. 2 minutes!
![Page 10: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/10.jpg)
1minute Remaining…
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Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. 1 minute!!!
![Page 12: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/12.jpg)
30 Seconds Remaining…
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Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. 30 seconds!!!
![Page 14: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/14.jpg)
BELL-RINGER TIME IS
UP!
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Feb. 11, 2014
AGENDA:1 – Bell Ringer2 – Review HW
(Charles’)3 – CN: Lussac’s Law4 – Practice
Problems5 – Demos: Gas
Laws Boyle’s Law Charles’ Law Lussac’s Law
6 – Work Time
Today’s Goal:Students will be able to
calculate using Lussac’s Law.
Homework1. Lussac’s Law and
Mixed Practice HW2. Make up Week 22
Quiz by Friday.
![Page 16: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/16.jpg)
Tuesday, Feb. 11
Objective: Students will be able to calculate using Lussac’s Law.
Bell Ringer:Use Charles’ Law: T2V1 = T1V2 Oxygen gas, O2, filled a 5L container and had a temperature of 20 °C. If the volume was changed to 8L, calculate the new temperature in the container. REVIEW
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REVIEW HOMEWORKCharles’ Law
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Topic: Lussac’s Law Date: 2/11/2014
Lussac’s Law = For a given amount of gas at a constant volume, the PRESSURE of the gas is directly related to TEMPERATURE.
So if: T ↑ = P ↑ T ↓ = P ↓
T α P
1. Contrast2. Describe3. Explain
Temperature
ConstantVolu
me
Pressure
Temper-ature
Pre
ssu
re
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Topic: Lussac’s Law Date: 2/11/2014
Variables & Units: T = Temperature (K = Kelvin)
Remember to convert: K = °C + 273
P = Pressure (atm) Equation:
1. Contrast2. Describe3. Explain
P1 = P2
T1 T2 P1T2 = P2T1
Notice subscriptsare different on each
side!
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Practice Problem
A refrigerated bottle of pop is at 4°C. The pressure of the bottle is 1atm. The bottle is then taken to the beach on a hot summer day, where it is 37°C. What is the new pressure of the bottle?
3rd Calculate:P1T2 = P2T1
(1)(310)=(P2)(277)
310 = P2(277) 277 277P2 = 310/277P2 = 1.12atm
2nd Determine Variables:P1 =T1 =P2 =T2 =
1st Predict: If T ↑, then P ↑.
4°C1atm
37°C? = x
+273=277K
+273=310K
Convert to K!
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Mixed Practice Problems
Describe when to use each of the three Gas Laws (i.e., what variables are changing when you use each)… …Boyle’s Law?
With changes in P & V …Charles’ Law?
With changes in T & V …Lussac’s Law?
With changes in P & T
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Demonstrations of Boyle’s Law
Stay Puft Marshmallow Man in a vacuum… http://www.youtube.com/watch?v=27yqJ9vJ5kQ
What happens to lungs when diving underwater? Underwater demo:
http://www.youtube.com/watch?v=t8wFIMbMJvs Lab explanation demo:
http://www.youtube.com/watch?v=hXnkJNk45Ek
Discussion: How do yourlungs work?
![Page 23: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/23.jpg)
Demonstrations of Charles’ Law Balloon fun with liquid nitrogen…
http://www.youtube.com/watch?v=ZgTTUuJZAFs
Balloon fun with boiling water… http://www.youtube.com/watch?v=GcCmalm
LTiU
Discussion: How do hot air balloons work?
![Page 24: Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws Boyle’s Law Charles’](https://reader035.fdocuments.us/reader035/viewer/2022062805/5697c0261a28abf838cd5d6a/html5/thumbnails/24.jpg)
Demonstrations of Lussac’s Law
How to get an egg into a bottle… http://www.youtube.com/watch?v=N133Ya9
iEBY Bill Nye: Bottle and Can Crusher (Really,
this addresses all of the Gas Laws.) http://www.youtube.com/watch?v=NOSNS3IvR_M
Discussion: What happens to tire pressure in winter? Aerosol cans warn: “Don’t expose to
heat”… Why?