Quiz on Vapour Pressure

The working principle of refrigerator utilizes what principle?

• Cooling effect of evaporation

• Equilibrium

• Relative density

What is defined as the amount of water vapour in the atmosphere?

• Relative humidity

• Humidity

• vapour pressure

What is the temperature at which the water vapour present in the air is just sufficient to saturate it?

• Mist

• Fog

• Dew point

What is the instrument used for measuring relative humidity?

• Hydrometer

• Hygrometer

• Micrometer

What is the vapour that is in contact with its own liquid within a confined space?

• Standard vapour

• Saturated Vapour

• Pressure Vapour

What occurs when the temperature in the atmosphere is low that dew form on leaves and grasses freezes

• Dew

• Frost

• Hail

What is the temperature at which the saturated vapour pressure equals the atmospheric pressure?

• Dew point

• Boiling point

• Vapour point