Find the cell potential for a system whose ∆g = +55 kj and 3 moles of electrons are exchanged.

- cell potential = -0.19 volts

Solution:- The equation that shows the connection between and cell potential, E is written  as:

in this equation, n stands for moles of electrons, E stands for cell potential and F stands for faraday constant and it's value is .

It asks to calculate the value of E, so let's rearrange the equation:

Let's plug in the values in it:

since,

Where C stands for coulombs and V stands for volts.

So,

E = -0.19 V

So, the cell potential is -0.19 volts.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.