Among the following, which process shows the largest positive entropy change?
A
Dissolution of iodine in water
B
Sublimation of dry ice
C
Synthesis of ammonia from 
and 
and D
Liquid crystallizes to solid.
Text Solution
Verified by ExpertsThe correct answer is:
B
Entropy is highest in the gaseous state; converting a solid directly to gas (sublimation of 
) gives the largest positive, 
. By contrast, making 
lowers gas moles
( 
), and when liquid crystallizes to solid the entropy change is negative.
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