In which of the following processes entropy increases?
A. A liquid evaporates to vapour.
B. Temperature of a crystalline solid lowered from 
to 
.
C. 
D. 
Choose the correct answer from the options given below:
and 
Text Solution
Verified by ExpertsWhen liquid evaporates to vapour, entropy increases due to increase in randomness.
When temperature of crystalline solid lowered from 
to 
, the random collisions will decrease, resulting in decrease in entropy.
In the given reaction, 
Solid is converting to gas, due to which randomness increases and hence, entropy increase.
In the given conversion, 
number of gaseous atom increases, due to which entropy increases.
Hence, Entropy will increase in case of A, C, D.
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