Experimental Approach to ElectrochemistryWiley, 1977 - 211 pagine |
Dall'interno del libro
Risultati 1-3 di 19
Pagina 79
... efficiency is poor , and in an attempt to increase it , the motor is changed to one with a higher resistance , say 90 N. Now the total resistance is 100 N and the current 4.6 mA , which requires 4.2 × 104 s ( about 12 hours ) for 1 ...
... efficiency is poor , and in an attempt to increase it , the motor is changed to one with a higher resistance , say 90 N. Now the total resistance is 100 N and the current 4.6 mA , which requires 4.2 × 104 s ( about 12 hours ) for 1 ...
Pagina 133
... efficiency . 7. In the electrolysis of sodium hydroxide solution , for the production of hydrogen , the p.d. across the nickel electrodes was 2.60 V and the current was 2.0 kA . Assum- ing 100 % current efficiency , calculate the energy ...
... efficiency . 7. In the electrolysis of sodium hydroxide solution , for the production of hydrogen , the p.d. across the nickel electrodes was 2.60 V and the current was 2.0 kA . Assum- ing 100 % current efficiency , calculate the energy ...
Pagina 172
... efficiency of 98 % 2 chemical energy conversion would be achieved . This may be compared with the theoretical maximum efficiency of 40-50 % for any ' heat engine ' type of energy convertor , with its Carnot limitation of ( T2 - T1 ) ...
... efficiency of 98 % 2 chemical energy conversion would be achieved . This may be compared with the theoretical maximum efficiency of 40-50 % for any ' heat engine ' type of energy convertor , with its Carnot limitation of ( T2 - T1 ) ...
Sommario
1 | 8 |
The stoichiometry of electrolysis Faradays Laws | 15 |
5 | 21 |
Copyright | |
16 sezioni non visualizzate
Parole e frasi comuni
activity coefficient AgNO3 aluminium anode Appendix aqueous solution Calculate carbon cathode cell potential cell reaction chemical circuit cm² cm³ concentration cell conductimetric constant copper copper(II coulometric Cu² Cu2+ Cu²+(aq current density CuSO4 decomposition potential dilute discharge dissolved dm³ Ecell effect electricity electrochemical electrochemistry electrode potential electrode reactions equation equilibrium equivalence point ethanoic acid Fe² Fe2+ Fe³ Fe3+ free energy fuel cell galvanic cell glass electrode graph H₂ H₂O half-cells half-equations half-reactions heat hydrogen hydroxide increase iodine ionic ions measured mercury metal minimum decomposition potential molar conductivity mole NaOH negative Nernst equation overpotential oxygen plating platinum polarity potassium potential difference potentiometer reactants redox potentials redox reactions reduction potentials reference electrode resistance reversible cell potential salt shown in Fig silver sodium chloride soluble sulphate sulphate(VI sulphuric acid surface temperature titration transport numbers vanadium(II variation voltmeter zero zinc Zn2+