Question

What are the cell reactions and their emfs in the following systems? Are the reactions spontaneous? Assume that all systems are aqueous.(a)Ag/AgCl/K+, Cl- (1 M)/Hg2Cl2/Hg(b) Pt/Fe3+ (0.01 M), Fe2+ (0.1 M), HCl (1 M)//Cu2+ (0.1 M), HCl (1 M)/Cu(c) Pt/H2 (1 atm)/ H+ , Cl- (0.1 M)// H+ , Cl- (0.1 M)/O2 (0.2 atm/Pt(d) Pt/H2 (1 atm)/Na+ , OH- (0.1 M)// Na+ , OH- (0.1 M)/O2 (0.2 atm)/Pt(e) Ag/AgCl/K+ , Cl- (1 M)// K+ , Cl- (0.1 M)/ AgCl/ Ag(f) Pt/ Ce3+ (0.01 M), Ce4+ (0.1 M), H2SO4 (1 M) // Fe2+ (0.01 M), Fe3+ (0.1 M), HCl (1 M)/ Pt