11.1 Gas Laws

Presentation

•

Science

•

9th - 12th Grade

•

Hard

•

NGSS

MS-PS1-4, HS-PS3-2

Standards-aligned

Stacy King

FREE Resource

15 Slides • 8 Questions

Gas Laws

School Announcements:

Boyle's Law
Charles’s Law
Avogadro’s Law
Ideal Gas Law

Multiple Choice

Of these three states of matter, which one has the most kinetic energy?

Solid

Liquid

Gas

Pressure

Pressure: The amount of force applied per unit of area.

In gases, as pressure increases, volume decreases.

Why?

When the particles in a gas are compressed, they have less space to move around. As a result, the particles start to collide with one another more often — this increases pressure!

Pressure

⦿ Pressure- Force per unit area. Dependent on volume temperature. (Gas Laws)

1 atm

0.3 atm

0 atm

DOES AIR WEIGH ANYTHING?

Multiple Choice

When the area decreases what happens to the gas particles?

The pressure increases due to the applied force

The pressure decreases due to the applied force

The force and pressure are unrelated

Units of Pressure

Pascal - Pa (SI Unit)

Atmospheric – atm (we will use this unit)

Torr – torr

Millimeters of mercury – mmHg

Pounds per square inch - psi

Multiple Choice

When Volume increases then Pressure must...

Increase

Decrease

Multiple Choice

When Pressure increases then the Volume must...

Increase

decrease

Volume and pressure have an INVERSE RELATIONSHIP.

If pressure increases, volume decreases (gas is compressed).

If pressure decreases, volume increases (gas is released/expands)

BOYLE'S LAW Equation

P₁is initial Pressure
V₁ is initial Volume

P₂ is Final Pressure
V₂ is Final Volume

Match

Match the following

P₁

V₁

P₂

V₂

Initial pressure

Initial volume

Final pressure

Final Volume

Multiple Choice

The formula for BOYLE'S LAW is?

$P_1V_1=P_2V_2$

$\frac{\text{V1}}{\text{T1}}=\frac{\text{V2}}{\text{T2}}$

$pV=nRT$

Multiple Choice

What happens to the balloon when the syringe plunger is pulled upwards?

The balloon remained unchanged

The balloon increased in size

The balloon decreased in size

Multiple Choice

According to the video what keeps the mass of the air molecules constant?

The size of the syringe

The temperature of the air

Covering the opening of the syringe

Water in the balloon

Gas Laws

School Announcements:

Boyle's Law
Charles’s Law
Avogadro’s Law
Ideal Gas Law

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11.1 Gas Laws

​Pressure

​BOYLE'S LAW Equation

​BOYLE'S LAW Equation

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Pressure

BOYLE'S LAW Equation

BOYLE'S LAW Equation