The standard potential of the following cell is 0.23 V at 15ºC and 0.21 V at 35ºC.
Pt |H 2 (g) | HCl (aq.) | AgCl (s) | Ag (s).
(i) Write the cell reaction
(ii) Calculate Δ Hº and Δ Sº for the cell reaction by assuming that these quantities remain unchanged in the range 15º to 35ºC.
(iii) Calculate the solubility of AgCl in water at 25ºC. Given The standard reduction potential of the Ag+ (aq)/Ag(s) couple is 0.80 V at 25ºC.
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(i)AgCl (s) + 1/2 H 2 (g) → H + (aq.) + Ag(s) + Cl –
(ii) Δ S = – 96.5 JK –1 Δ H = – 49987 J mol –1 (iii) 1.24 × 10
–5 mol L –1
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