The Study of Gas Laws

What defines the shape and volume of gases?

Gases do not have a definite shape or volume.

What is the relationship between the molecular distance of gases compared to liquids and solids?

The distance between the molecules of gases is much larger than that of liquids and solids.

How does the force of attraction between gas molecules compare to that of liquids and solids?

The force of attraction between gas molecules is negligible, whereas it is more in liquids and highest in solids.

Describe the movement of gas molecules.

Molecules of gases move in a straight line, undergo random collisions with each other, and occupy the complete space available in the container.

What is Boyle's Law?

Boyle's Law states that for a fixed mass of gas at constant temperature, the volume of the gas is inversely proportional to its pressure.

When the pressure of a fixed mass of gas is increased, what happens to its volume?

The volume decreases.

What is the formula for Boyle's Law?

P1V1 = P2V2.

What does Charles' Law state?

At constant pressure, the volume of a fixed mass of gas is directly proportional to its absolute temperature.

What is the formula for Charles' Law?

V1/T1 = V2/T2.

What is the equation for gas at constant pressure related to temperature?

P1V1/T1 = P2V2/T2.

What are the standard conditions for temperature and pressure (S.T.P)?

Standard temperature is 273 K and standard pressure is 760 mm of Hg or 76 cm of Hg.

What characterizes the density of gases?

Gases have much lower densities compared to solids and liquids.

How do gas molecules behave under constant temperature with increasing pressure?

The volume of the gas decreases.

What happens to the volume of gas when its temperature decreases at constant pressure?

The volume decreases.

What happens to gas molecules when their temperature increases?

Their volume increases.

Define 'intermolecular distance' in gases.

The intermolecular distance between gas molecules is very large.

What allows gases to diffuse readily?

The large space between the molecules of gases allows them to diffuse readily.

What effect does gas movement have on pressure in a container?

The impact of gas molecules with high velocity causes them to exert pressure in all directions.