gas laws study guide

Variables in Boyle’s Law

Pressure and volume

boyle law equation

P1\* V1 = P2 \* V2

boyles law definition

**At constant temperature, the volume of the gas increases as the pressure decreases.  The volume of the gas decreases and the pressure increases**

Variables in Charles’s Law

Volume and temperature

charles law equation

V1/T1 = V2/T2

charles law definition

**the volume of a fixed mass of gas is DIRECTLY PROPORTIONAL to its Kelvin temperature if the pressure is kept constant**

Variable in Gay Lussac’s Law

Pressure and temperature

gay lussac equation

P1/T1 = P2/T2

gay lussac law definition

**pressure of a gas is DIRECTLY PROPORTIONAL to the KELVIN temperature if the volume remains constant**

As temperature of a gas increases

the pressure will increase

As a gas is heated

the volume will increase

If volume of a gas is doubled

the pressure will be cut in half (inverses)

Do gases fill their containers

yes

Are gases weightless

no

Are gases easy to compress

yes

Do gases exert pressure

yes

Which theory explains gas properties

Kinetic molecular theory of gases

Which scientific instrument measures the pressure of a gas in a CLOSED container

barometer

Who discovered the law of partial pressures

john dalton

Collisions between gas particles are elastic OR inelastic

elastic (kinetic energy conserved)

True or false: gases behave ideally under most conditions

true

True or false: large gas molecules behave less ideally than small gas molecules.

false

True or false: at low temps and high pressure, there are significant differences in ideal behavior.

true

True or false: all gases are real gases.

false

True or false: gasses expand to fill any container.

true

True or false: gasses are fluids.

true

True or false: gasses are easily compressed.

true