Module 12 Gases

What theory do ideal gases follow?

The Kinetic-Molecular Theory

What is the volume of particles in an ideal gas?

No space

Do ideal gases have intermolecular forces?

No, there are no intermolecular attractive or repulsive forces in ideal gases.

What is the motion of particles in an ideal gas?

Constant random motion

What type of collisions do ideal gas particles have?

Perfectly elastic collisions

Are there truly ideal gases?

No, no gas is truly ideal

What happens to real gases under high pressure and low volume?

The sizes of the gas particles interfere with compressibility, leading to liquefaction or solidification

What is the effect of intermolecular interactions on real gases?

Real gas volume is smaller than expected due to attraction between particles

When do real gases deviate most from ideal gas behavior?

At high pressures and low temperatures

How do polar molecules affect gas behavior?

They have larger attractive forces and do not behave as ideal gases

What is the impact of large nonpolar gas particles?

They occupy more space and have larger attractive forces, deviating more from ideal gases

What is a characteristic of collisions in real gases?

Collisions are not perfectly elastic

What is the behavior of gases at extreme pressure and temperature?

Real gases behave less like ideal gases

What is the volume characteristic of liquids and solids compared to gases?

Liquids and solids have volume

Boyle's Law

The volume of a fixed amount of gas held at a constant temperature varies inversely with the pressure.

Charles Law

Volume of a given amount of gas is directly proportional to its kelvin temperature at constant pressure.

Avogadro's Principle

Equal volumes of gases at the same temperature and pressure contain equal numbers of particles.

Ideal Gas Law

Physical behavior of an ideal gas in terms of pressure, volume, temperature and number of moles of gas present.

Gay-Lussac's Law

pressure of a fixed amount of gas varies directly with the kelvin temperature when the volume remains constant

Combined Gas Law

the relationship among pressure, temperature, and the volume of a fixed amount of gas is constant.