Question

5 marks Questions:



1. a) What is meant by evaporation? What are the factors on which the rate of evaporation depend upon?

b) How does evaporation causes cooling? (for 5 mark )​

Answer 1

Answer:

b- because the process requires heat energy.the energy is taken buy the molecules when they convert from liquid into gas, and this causes cooling on the original surface.

Answer 2

Answer:

1 a) Evaporation: The process of conversion of water into water vapor at any temperature is called as Evaporation

Factors depending on Evaporation:

1. Surface area

2. Temperature

3.Nature of the substance

b)When tea is poured in the cup and saucer, tea in the saucer cools faster than tea in the cup

due to surface area

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