Vapor Pressure

Front

What happens to the boiling point of a substance when its intermolecular forces are weaker?

Back

The boiling point is lower.

Front

How does an increase in the number of gases affect vapor pressure?

Back

Vapor pressure will increase.

Front

What is the normal boiling point of water?

Back

100°C.

Front

Why do sealed jars with liquid in them eventually reach equilibrium?

Back

Because evaporation rates equal condensation rates.

Front

What instrument is used to measure vapor pressure?

Back

A manometer.

Front

Define vapor pressure.

Back

Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid or solid phase.

Front

What is the relationship between temperature and vapor pressure?

Back

As temperature increases, vapor pressure increases.

Front

What is the significance of a substance's boiling point?

Back

It indicates the temperature at which its vapor pressure equals atmospheric pressure.

Front

Explain the concept of dynamic equilibrium in the context of vapor pressure.

Back

Dynamic equilibrium occurs when the rate of evaporation equals the rate of condensation.

Front

What role do intermolecular forces play in determining vapor pressure?

Back

Stronger intermolecular forces result in lower vapor pressure.