Question

a-) Define Evaporation. How does it differ from boiling?
b-)Discuss the various factors which increase the rate of evaporation.

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Answer 1

Answer:

a)Evaporation is a normal process that occurs when the liquid form changes into the gaseous form; while causing an increase in the pressure or temperature. Boiling is an unnatural process where the liquid gets heated up and vaporized due to continuous heating of the liquid. ... Bubbling effect is not visible in evaporation.

b) The rate of evaporation is affected by the following factors: Temperature: The rate of evaporation increases with an increase in temperature. Surface area: The rate of evaporation increases with an increase in surface area. Humidity: The amount of water vapour present in the air is called humidity.

Explanation:

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Answer 2

Answer:

a)To summarize, evaporation is slower, occurs only from the surface of the liquid, does not produce bubbles, and leads to cooling. Boiling is faster, can occur throughout the liquid, produces lots of bubbles, and does not result in cooling.

b)Evaporation depends on the amount of water vapour present in the air (humidity). If the amount of water vapour present in the air is less, then evaporation is more. On a hot dry day, the amount of water vapour present in the air is less.

Explanation:

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