Question

5 ml of water was taken in a test tube and china dish separately. These samples were then kept undo different conditions as below (a) Both the samples are kept under the fan. (b) Both the samples are kept in a cupboard. State in which case evaporation will be faster? Give a reason to support your answer​

Answer 1

Explanation:

These samples were then kept under different conditions as below : <br> (a) Both the samples are kept under a fan. ... Since fan helps in the fast movement of the air, water will get more opportunity to evaporate under a fan than inside a cup board. In this case, the outside air will not come in contact with water.

Answer 2

$\sf\huge\bold{Question?}$

5 ml of water was taken in a test tube and china dish separately. These samples were then kept undo different conditions as below

(a) Both the samples are kept under the fan.

(b) Both the samples are kept in a cupboard.

State in which case evaporation will be faster?

Give a reason to support your answer

$\sf\huge\bold{Answer:}$

(a) Rate of evaporation in test tube is less than the rate of evaporation in china dish.

(b) Rate of evaporation in test tube is less than the rate of evaporation in china dish.

$\fbox{Explanation}$

In both the condition (a) and (b) the temperature is same.

The surface area of test tube is less than that of china dish.

So,larger the area more will be the evaporation.

Therefore, the rate of evaporation will be affected by surface area of water which is in contact of atmosphere.