Predict the sign of entropy change for each of the following changes of state:
(a) `Hg(l) to Hg(g)`
(b) `AgNO_(3) (aq) to AgNO_3(s)

Explanation

(a)`DeltaS = +ve` because liquid changes to more disordered gaseous state.
(b) `DeltaS = + ve` because aqueous solution has more disorderthan solid.