Question

Write T for true and F for false statements.

Evaporation depends on many factors.

• A. True
• B. False

Answer 1

The correct option is A True

Evaporation:

• Evaporation is the change of a liquid into a vapor at a temperature below the boiling point.
• It is slow and reversible change.

Evaporation depends on many factors:

1. Surface area: The area of the exposed surface determine the rate of evaporation. A Larger surface area increases the rate of evaporation.
2. Humidity is the moisture holding capacity of air at a given temperature. Dried air evaporates more water than humid air. For example, in the rainy season, wet clothes do not dry easily.
3. Motion of air (Wind): Evaporation depends on the wind speed. Wind increases the rate of evaporation. For example, when you dry hair in front of a table fan, hair dries faster.
4. Temperature: Higher the temperature means more energy is available to the water molecule for converting from the liquid to the gaseous state. For example, wet clothes dry faster in summer.
5. Air Pressure: Pressure exerted by the atmosphere on the surface also affect the rate of evaporation. Lower pressure on the open surface results in the higher rate of evaporation.

Thus, the given statement is True, i.e., Evaporation depends on many factors.