REPORT SHEET EXPERIMENT Electrochemical Cells 17 and Thermodynamics Shorthand cell designation Temperature (C) E cell (m

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Report Sheet Experiment Electrochemical Cells 17 And Thermodynamics Shorthand Cell Designation Temperature C E Cell M 1 (58.02 KiB) Viewed 37 times

REPORT SHEET EXPERIMENT Electrochemical Cells 17 and Thermodynamics Shorthand cell designation Temperature (C) E cell (measured) AG (calculated) Ke (calculated) Pb/Pbat(m)//Cut(m) 25°C 56 y -100,34 KJ 5.12x10 17 2₁ Curquat (IM)//SOLIM) 25°C .78 v -148.59 kJ 5.13x 1025 -52.10 KJ 3. Pb/PER+LIM) 1/5 at 25°C .28 v 1.04x10-9 Show calculations for AG and K for an exemplary pair. For Pb | Pb²+ || Sn²+ | Sn: Half-cell equation E half-cell (calculated) 1. Pb²+ +2e=Pb/ Cu²+ + 2e = = Cu 2. Sna++2e=50 / Cuattae" = Cu 3. 5₂²² +2e=Sn/Pb²+ +2e²= Pb 0,337 -(-0126x) = 0.463 0.337-(-0.13(x) = 0.473 -0.126v-(-0.136v) = 0.01 Effect of Temperature on Cell Potential Temperature (°C) Temperature (K) AG (calculated) Cell designation: E (measured) Cu/Cut (IM)//SIM) Sn²+ 170°C. 343.15 Hot water = 0.86 v Cooled water = 0.85v Ice Water = 0.81 v 55°C 328.15 10°C 283.15 AS determined from the slope of a plot of AG versus T. AH calculated at 298 K (show calculations)