Question

The two prongs have on average a potential difference of 120V. If you transfer 2.7 moles of electrons at that voltage, how much Energy is released

Answer 1

The energy released is
`3.13* 10^(7)\ C`

Step-by-step explanation:

Potential difference between two prongs, V = 120 V

No. of moles of electrons, n = 2.7 moles

Now,

We know that the charge contained in 1 mole of an electron is given as:

1 mole = 96485 C

Thus

The charge in 2.7 moles of electrons:

Q =
`2.7* 96485 = 260509.5\ C`

Now,

Energy released, E = QV

`E = 260509.5* 120 = 3.13* 10^(7)\ C`