Question

A student designed an experiment to show how water is recycled through the atmosphere. The steps of the experiment are shown below. Boil 500 mL of water in a beaker. Hold a cold glass plate a few inches above the beaker. Observe water droplets on the glass plate. Which statement best justifies why this experiment should be performed with a cold glass plate?
1.Cold surfaces do not expand.
2.Cold surfaces allow more water to evaporate.
3.Water vapor condenses easily on cold surfaces.
4.Water vapor rises faster towards cold surfaces.

Answer 1

3. water vapor condenses easily on cold surfaces

Answer 2

Answer: Option C

Explanation:

The recycling of water can be defined by a simple experimented conducted at home.

In the first step, 500 ml of water was heated and boiled until started evaporating.

In the second step a cold plate was held few inches above the container in which water is boiling.

This was done to prove that water cools down easily on cold surfaces. The above two steps shows how water is recycled.