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Q.

In the evaporation of water ,the Entropy

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a

decreases

b

increases

c

does not change

d

some times decreases, some times increases

answer is B.

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Detailed Solution

Evaporation of the water only increases the entropy because gases are free to move. 

Entropy is the measure of disordernes of molecules in a system. 

As water evaporates it's molecules starts moving randomly and with greater speed also, that means disordernes has increased.

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In the evaporation of water ,the Entropy