Question

If 5 ampere of current is passed through a solution for 10 hours then the number of electrons flown through the solution is (Charge of electron =1.6times10^(-19)C)​

Answer 1

Given:

5 ampere of current is passed through a solution for 10 hours.

To find:

Total electrons flown ?

Calculation:

First of all, let's calculate the total charge passed in 10 hours:

$q = i \times t$

$\implies \: q = 5 \times (10 \times 60 \times 60)$

$\implies \: q = 5 \times 36000$

$\implies \: q = 180000 \: coulomb$

Now, number of electrons passed :

$\implies \: e = \dfrac{180000}{1.6 \times {10}^{ - 19} }$

$\implies \: e = 11.25 \times {10}^{4 + 19}$

$\implies \: e = 11.25 \times {10}^{23}$

So , 11.25 × 10²³ electrons passed in 10 hours.