Gases

Real and Ideal Gases

VP ∝ 1

TP ∝

=

nP ∝

=

=

Universal Gas Equation

PV = nRT

VP ∝ 1

TP ∝

nP ∝

=

=

PV = nRT

phasemay be

solid

liquid

gas

intermolecular forces (i.f.) i.f.

phasemay be

solid

liquid

intermolecular forces (i.f.) i.f.

gas

i.f.

phasemay be

solid

liquid

gasenergy (E)

intermolecular forces (i.f.)E

i.f.

Ei.f.

Ideal gas Real gasIntermolecular forces

Ideal gas Real gasIntermolecular forces

x

Ideal gas Real gasIntermolecular forces

x

Ideal gas Real gasIntermolecular forces

x

Ideal gas Real gasIntermolecular forces

x

temperature

low

Ideal gas Real gasIntermolecular forces

x

temperature

low

Ideal gas Real gasIntermolecular forces

x

change phase

so

at

temperature

low

Ideal gas Real gasMolecules have volume

x

Ideal gas Real gasMolecules have volume

x

Ideal gas Real gasIntermolecular forces

x

Molecules have volume

x

Ideal gas Real gasIntermolecular forces

x

Molecules have volume

x

Type

have

Temperature

PressureAmount

Gases

Volume

Amount

have

Temperature

PressureAmount

Gases

Volume

AmountTyp

e