Review for Test: Properties of Gases

Front

What happens to the volume of gas in a syringe when the plunger is pulled from the 15 mL line to the 35 mL line?

Back

The volume increases.

Front

What is effusion in the context of gases?

Back

Effusion is the ability of a gas to escape through a tiny opening.

Front

What happens to the pressure inside a syringe when the volume is increased from 35 mL to 70 mL?

Back

The pressure will decrease.

Front

If the volume of a gas increases, what happens to the pressure?

Back

The pressure decreases.

Front

What is a unique quality of gases compared to solids and liquids?

Back

Gases spread out to fill all available space.

Front

What is the relationship between pressure and volume in gases according to Boyle's Law?

Back

Pressure and volume are inversely related; as volume increases, pressure decreases.

Front

Define the term 'diffusion' in relation to gases.

Back

Diffusion is the process by which gas molecules spread from areas of high concentration to areas of low concentration.

Front

What is the effect of temperature on the pressure of a gas in a closed container?

Back

As temperature increases, the pressure of the gas increases.

Front

What is the ideal gas law equation?

Back

PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.

Front

What happens to gas molecules when they are heated?

Back

They gain energy and move faster, increasing pressure if the volume is constant.