Q.
Predict which of the following reaction(s) has a positive entropy change?
$I. Ag^{+}\left(aq\right) + Cl^{-}\left(aq\right)\to AgCl\left(s\right)$
$II. NH_4Cl\left(s\right)\to NH_3\left(g\right)+ HCl\left(g\right)$
$III. 2NH_3\left(g\right)\to N_2\left(g\right)+3H_2\left(g\right)$
Thermodynamics
Solution: