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Factors affecting evaporation rate

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Questions and Answers

What effect does an increase in surface area have on the rate of evaporation?

Increases the rate of evaporation (correct)

Has no effect on the rate of evaporation

Decreases the rate of evaporation

Makes the water freeze

How does humidity affect the rate of evaporation?

Decreases the rate of evaporation (correct)

Turns water into ice

Has no effect on the rate of evaporation

Increases the rate of evaporation

Which factor causes particles to move away with the wind, consequently decreasing the amount of water vapor in the surrounding?

Decrease in wind speed

Increase in temperature

Increase in humidity

Increase in wind speed (correct)

In the given experiment, what happens to the rate of evaporation if the test tube with water is kept inside a cupboard or on a shelf in the classroom?

Rate of evaporation decreases (C) Signup and view all the answers

What effect does evaporation have on the surroundings?

It makes the surroundings cold (A) Signup and view all the answers

In the experiment with acetone on the palm, why does the palm feel cool?

The palm absorbs energy from the acetone (B) Signup and view all the answers

Why do people sprinkle water on a hot roof or open ground after a sunny day?

To reduce the temperature by evaporation (D) Signup and view all the answers

Why is cotton preferred for summer clothing?

Cotton facilitates evaporation and keeps the body cool (A) Signup and view all the answers

What is the main difference between boiling and evaporation?

Boiling is a surface phenomenon, while evaporation is a bulk phenomenon. (C) Signup and view all the answers

How does evaporation contribute to cooling?

Evaporation absorbs heat energy from the surroundings. (D) Signup and view all the answers

Which factor does NOT affect the rate of evaporation?

Pressure (D) Signup and view all the answers

Why can we smell perfume sitting several meters away?

Perfume particles evaporate and travel through the air to reach our noses. (A) Signup and view all the answers