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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

Respuesta :

Answer:

The energy released is [tex]3.13\times 10^{7}\ C[/tex]

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 = [tex]2.7\times 96485 = 260509.5\ C[/tex]

Now,

Energy released, E = QV

[tex]E = 260509.5\times 120 = 3.13\times 10^{7}\ C[/tex]