Time Initial Volume of Final Volume of Load () Voltage (V) Current (A) (sec) H2(g) (mL) H2(g) (mL) 3 10 Treatment of Data: Calculate the Faraday efficiency, of the fuel cell for each of the two conditions. ŋ, Using the thermodynamic data in Table 1, calculate theoretical energy efficiency of the fuel cell, = theoretical G/H. For each of the two conditions, calculate actual energy efficiency of the fuel cell, cell=VIt/H. Based on your results, comment on the load that should be chosen to operate the fuel cell Table 1: Selected Thermodynamic Data S° (J mol-1 Substance (kJ/mol) (kJ/mol) Hf° Gf° H2 (g) 0 0 131 O2 (g) 0 0 205 H2O () -286 -237 70 CH3OH () -239 -166 127 CO2 (g) -393.5 -394 214 Questions:
Load () Time (sec) Voltage (V) Current (A) Initial Volume of H2(g) (mL) Final Volume of H2(g) (mL) 3 10 Treatment of Data: Calculate the Faraday efficiency, ŋ, of the fuel cell for each of the two conditions. Using the thermodynamic data in Table 1, calculate theoretical energy efficiency of the fuel cell, theoretical = G/H. For each of the two conditions, calculate actual energy efficiency of the fuel cell, cell=VIt/H. Based on your results, comment on the load that should be chosen to operate the fuel cell Table 1: Selected Thermodynamic Data Substance Hf° (kJ/mol) Gf° (kJ/mol) S° (J mol-1 H2 (g) 0 0 131 O2 (g) 0 0 205 H2O () -286 -237 70 CH3OH () -239 -166 127 CO2 (g) -393.5 -394 214 Questions: