Determine which of the following reactions at constant pressure represent systems that do work on the surrounding environment I. Ag^(+) (aq) + Cl^(-) (aq) rarr AgCl(s) II. NH_(4)Cl(s) rarr NH_(3) (g) + HCl (g) III. 2NH_(3)(g) rarr N_(2)(g) + 3H_(2)(g)

Determine which of the following reactions at constant pressure repres

1.	Determine which of the following reactions at constant pressure represent systems that do work on the surrounding environment I. Ag^(+) (aq) + Cl^(-) (aq) rarr AgCl(s) II. NH_(4)Cl(s) rarr NH_(3) (g) + HCl (g) III. 2NH_(3)(g) rarr N_(2)(g) + 3H_(2)(g)
Answer» I III II and III I and II Solution :W by system `gt 0 rArr` expansion `rArr DELTA NG gt 0 rArr II, III`