Question

describe an activity to show that rate of evaporation increases with surface area ​

Answer 1

Answer:Evaporation is a surface phenomenon so larger the surface area provides greater opportunity for the molecules to escape.

Hence the evaporation of a liquid increases with an increase in the surface area.

When tea is poured in a saucer, it cools faster.

The particles of tea on the surface absorb the heat of vaporisation from the remaining particles of the tea and evaporate.

The tea thus loses heat and cools faster.

Explanation:

Answer 2

Explanation:

Activity

• take two wet cloths
• now hang them to dry bt spread only one cloth
• u would notice that the cloth that was spread will dry faster as compared to another this is because it has larger surface area then the other.
• this shows that increase in surface area increases the rate of evapiration