CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
On the basis of reaction : 34Al+O2→32Al2O3 ; ΔG=−827 kJ mol−1 of O2 , the minimum emf required to carry out electrolysis of Al2O3 is:
(1) 6.42 V
(2) 8.56 V
(3) 2.14 V
(4) 4.28 V