April 30 2013
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April 30, 2013. AGENDA: 1 – Bell Ringer & Part. Log 2 – CN: Kinetic Molecular Theory and Boyle’s Law 3 – Practice Problems 4 – Demo: Boyle’s Law 5 – Work Time. Today’s Goal: Students will be able to explain kinetic molecular theory and Boyle’s Law. Homework

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April 30, 2013

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April 30 2013

April 30, 2013

AGENDA:

1 – Bell Ringer & Part. Log

2 – CN: Kinetic Molecular Theory and Boyle’s Law

3 – Practice Problems

4 – Demo: Boyle’s Law

5 – Work Time

Today’s Goal:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Homework

  • Kinetic Molecular Theory and Boyle’s Law

  • Work from Week 32 is due by Friday.

  • Make up Week 32 Quiz by Friday.


Tuesday april 30

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

5 minutes!


4 minutes remaining

4 MINUTES REMAINING…


Tuesday april 301

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

4 minutes!


3 minutes remaining

3 MINUTES REMAINING…


Tuesday april 302

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

3 minutes!


2 minutes remaining

2 MINUTES REMAINING…


Tuesday april 303

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

2 minutes!


1minute remaining

1minute Remaining…


Tuesday april 304

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

1 minutes!!!


30 seconds remaining

30 Seconds Remaining…


Tuesday april 305

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

30 seconds!!!


Bell ringer time is up

BELL-RINGER TIME IS UP!


April 30 20131

April 30, 2013

AGENDA:

1 – Bell Ringer & Part. Log

2 – CN: Kinetic Molecular Theory and Boyle’s Law

3 – Practice Problems

4 – Demo: Boyle’s Law

5 – Work Time

Today’s Goal:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Homework

  • Kinetic Molecular Theory and Boyle’s Law

  • Work from Week 32 is due by Friday.

  • Make up Week 32 Quiz by Friday.


Tuesday april 306

Tuesday, April 30

Objective:

Students will be able to explain kinetic molecular theory and Boyle’s Law.

Bell Ringer:

Describe what happens to the volume of a balloon when you apply pressure to it by squeezing it.

REVIEW


April 30 2013

Contrast

Describe

Explain

  • Topic: Kinetic Molecular Theory & Boyle’s LawDate: 4/30/2013

  • Kinetic Molecular Theory of Gases:

    (Movement of Molecules)

    • Gases are easily compressed. (They can take the shape of any container.)

    • Gas particles move around randomly with no pattern.

    • When gas particles collide, they do not lose energy. (They bump into each other and keep on moving.)

       Because of these assumptions, predictions can be made about how gases will be affected by changes in temperature, pressure, and volume.


April 30 2013

Contrast

Describe

Explain

  • Topic: Kinetic Molecular Theory & Boyle’s LawDate: 4/30/2013

  • Boyle’s Law = For a given amount of gas at a constant temperature, the VOLUME of the gas is inversely related to PRESSURE.

  • So if:V ↑ = P ↓

    V ↓ = P ↑

    V α 1/P

    P α 1/V

Constant Temperature

Pressure

Volume


Topic kinetic molecular theory boyle s law date 4 30 2013

Topic: Kinetic Molecular Theory & Boyle’s LawDate: 4/30/2013

  • Variables & Units:

    • P = Pressure (atm) (atm = atmospheres)

    • V = Volume (L, mL)

    • T = Temperature  constant

  • Equation:

  • P1V1 = P2V2


    Practice problem

    Practice Problem

    A gas has an initial pressure of 5atm. The pressure was changed to 8atm and the volume became 10L. What was the starting volume of the gas?

    1st Predict:

    If P↑,

    then V↓.

    2nd Determine Variables:

    P1 =

    V1 =

    P2 =

    V2 =

    3rd Calculate:

    P1V1 = P2V2

    (5)(V1) = (8)(10)

    (5)V1 = 80

    5 5

    V1 = 80/5

    V1 = 16L

    5atm

    ? = x

    8atm

    10L


    Demonstrations of boyle s law

    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 your

      lungs work?


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