Progress Check: Vapor Pressure PART I

Vapor pressure of a liquid depends on what factor?

• Temperature

• Pressure

• Volume

• Density

When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid will ________.

• boil

• freeze

• condense

• evaporate

5. Explain why water boils at 100°C at normal atmospheric pressure. Because at this temperature, the vapor pressure of water will be equal to the atmospheric pressure.

• Because at this temperature, the vapor pressure of water will be equal to the atmospheric pressure.

• Because at this temperature, the vapor pressure of water is less than the atmospheric pressure.

• Because at this temperature, the vapor pressure of water is greater than the atmospheric pressure.

• Because at this temperature, water molecules stop moving.

Determine the vapor pressure of propanone at 30°C.

• 38 kPa

• 25 kPa

• 50 kPa

• 60 kPa

Determine the vapor pressure of water at 75°C.

• 38 kPa

• 25 kPa

• 50 kPa

• 60 kPa

Determine the boiling point of water at 120 kPa.

• 105°C

• 100°C

• 110°C

• 95°C

Determine the boiling point of ethanoic acid at 80 kPa.

• 112°C

• 100°C

• 120°C

• 105°C

Tags

NGSS.HS-PS3-4

Determine the normal boiling point of ethanol.

• 79°C

• 85°C

• 90°C

• 95°C