B3.02.52.0E / V1.51.00.50.000.050.100.150.20I / A
得出E=3.0V
q20. 解 I=
tq=I t = 5000×94.5%×3×3600=5.013×10(库仑) Cu + 2e == Cu 2 64 5.013×10 m m = 1.63×10(千克)
777
16
B3.02.52.0E / V1.51.00.50.000.050.100.150.20I / A
得出E=3.0V
q20. 解 I=
tq=I t = 5000×94.5%×3×3600=5.013×10(库仑) Cu + 2e == Cu 2 64 5.013×10 m m = 1.63×10(千克)
777
16