The cell reaction for the given cell is spontaneous if: Pt,H_(2) (P_(1) atm)| H^(+) (1M)| H_(2) (P_(2) atm), Pt
Which of the given cells are concentration cells? (P) Pt|H_(2)(p_(1)bar)| HCl(aq) | H_(2)(p_(2)bar)|Pt (Q) Ag| AgCl| KCl(aq) || KBr(aq)| AgBr|Ag (R ) Ag| AgCl| KCl(aq)|| AgNO_(3)(aq) | Ag (S) Pt| Na(Hg)| Na_(2)SO_(4)(aq)|Na(Hg)|Pt