what happens to the entropy in the reaction i^2(s) ►i^2(g)?
a. entropy decreases in the reaction.
b. entropy stays the same in the reaction.
c. it is impossible to tell
d. entropy increases in the reaction.

D. Entropy increases in the reaction.

Explanation:

Entropy is the degree of randomness in a system. In the reaction given we go from a solid to a gas, therefore there is an increase in the randomness. This means there is an increase in entropy.