The process by which the water vapour in the air is changed into water droplets is called _________.

The correct answer is Condensation.

Key Points

• Condensation is the process by which water vapor in the air changes into liquid water droplets.
• This process occurs when air becomes saturated due to cooling or an increase in humidity, reaching its dew point.
• Condensation is responsible for the formation of clouds, dew, fog, and precipitation in the Earth's atmosphere.
• The process releases latent heat, which plays a crucial role in weather patterns and atmospheric energy balance.
• It is the opposite of evaporation, where liquid water changes into water vapor.

Additional Information

• Dew Point:
  • The dew point is the temperature at which air becomes fully saturated and condensation begins.
  • It depends on the amount of moisture in the air; higher moisture levels result in a higher dew point.
• Latent Heat:
  • Latent heat is the energy released or absorbed during phase changes, such as condensation or evaporation.
  • In condensation, latent heat is released into the atmosphere, fueling weather phenomena like storms.
• Evaporation vs Condensation:
  • Evaporation converts liquid water into water vapor, requiring heat absorption.
  • Condensation converts water vapor into liquid water, releasing heat into the environment.
• Role in Water Cycle:
  • Condensation is a vital step in the water cycle, transitioning water vapor into precipitation.
  • It ensures the redistribution of water from the atmosphere to the Earth's surface.