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At 25^(@)C the emf of the cell Pb_(2)|PbCl_(2) HCl (0.5 M) || HCl (0.5 M) |AgCl_((s))|Ag is 0.49 volts and its temperature coefficient (dE)/(dt)=-1.8 xx 10^(-4) volt/degree. Calculate (a) The empty change when 1 gm mol of silver is deposited and (b) The heat of formation of AgCl, if the heat of formation of lead chloride is -8600 cal. |
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Answer» (B) -30506 cal/mole |
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