Question on: WAEC Chemistry - 1991

Which of the processes represented by the following equations has the greatest positive entropy change?

A
C6H3(l) → C6H 6 (g)
B
H2O (s) → H2O(l)
C
CuO(s) + H2(g) → Cu(s) + H2
D
Na2CO3(s) + nH2O(l) →Na 2CO3nH2O(s)
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Correct Option: A

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