Since we assume that temperature is constant and temperatures of 25 degrees Celsius, that's our assumption. That means in Kelvin, 25 plus a 73 is 298. So a constant times our temperature that's constant divided by another constant called Faraday's constant, we get something called 0.257 a number, right? So this expression under these conditions gives us the following simplified expression. And this expression is nice because here we have three unknowns. This is our unknown, this is our unknown, and this is our unknown.