The document discusses gas laws and their applications. It outlines several gas laws including Boyle's law, Charles' law, Gay-Lussac's law, Dalton's law of partial pressures, and Avogadro's law. These laws describe the relationships between various gas properties including pressure, volume, temperature, and number of moles. The document also provides examples of how gas laws are applied in areas like bicycles, cars, and medical equipment. Students will demonstrate their understanding of gas behavior and laws through various performance tasks.

1. Performance Task
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2. Objectives
 State and illustrate
gas laws through
group role play/
drawing/
news casting/
singing/
dancing
 Demonstrate an
understanding of
how gases behave
based on Kinetic
Molecular Theory
(KMT) of Gases
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3. Introduction
 Air is all around us.
 Like breathing, many other human
activities involve gases.
 Such as: air is pumped into a bicycle
or automobile tire
 Medical field – respirator, syringe
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4. Gas Laws ???
Pressure and volume are
inversely related; T & n are
constant
Kelvin temperature and
the volume are directly
related; P & n are constant
 Boyle’s Law  Charles’ Law
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5. Gas Laws
Pressure is directly
related to its Kelvin
temperature; V & n are
constant
STP: T = 0⁰ C
P = 1 atm
 Gay-Lussac’s Law  Combined Gas Law
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6. Gas Laws
The total pressure exerted by the
mixture of gases is equal to the
sum of the partial pressures of the
gases present.
The volume is directly
related to the number of
moles; T & P are constant
 Dalton’s Law of Partial
Pressure
 Avogadro’s Law
PT = P1 + P2 + . . .
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7. Mole
Pressure
Temperature
Volume
R constant
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8. Derivation of Gas Equations from
IDEAL GAS EQUATION
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9. Gas Law’s Table of Relationship,
Meanings and Constant Conditions
Gas Law Relationship Meaning Constant
Conditions
Graham’s v α 1/√MM v↑ MM↓ T
Boyle’s V α 1/√P V↑ P↓ T, n
Charles’s V α T V↑ T↑ P, n
Gay-Lussac’s P α T P↑ T↑ V, n
Combined PV α T PV↑ T↑ n
Dalton’s Ptotal = P1 + P2 + ... + Pi Ptotal↑ ntotal↑ T, V
Avogadro’s V α n V↑ n↑ T, P
Ideal PV α nT PV↑ n↑ -
V = volume Ptotal = total pressure ↑ = quantity increases
T = Kelvin Temperature n = moles ↓ = quantity decrease
P = pressure ntotal= total moles
MM = molar mass v = average velocity
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10. Guide Questions
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11. Performance Task
Criteria
 Relevance to the assigned topic –
50%
 Presentation and illustration –
35%
 Execution, participation and
organization –
15%
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12. Summarize
Let’s
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13. Evaluation
1) In Boyle’s Law, P1V2 = P2V2, P1 stands for ______.
2) Charles Law states that Temperature and Volume
are directly related. This means that when T
increases, the V ______.
3) 0⁰C is equal to ____K
4) Avogadro’s equation n represents _____.
5) At Standard Temperature and Pressure (STP), T is
0⁰C and P is _____ atm.
6) Give one example of application of gas law.
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14. Application of Gas Laws
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15. CHEMICAL REACTION
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