JAMB - Physics (1989 - No. 30)
The electrochemical equivalent of silver is 0.0012gC-1. If 36.0g of silver is to be deposited by electrolysis on a surface by passing a steady current for 5.0mins, the current must be
6000A
100A
10A
1A
Giải thích
m = Itz \(\Rightarrow\) I = m = \(\frac{36}{5\times 60 \times 0.0012}\)
= 100A
= 100A