And if we assume constant temperature of, say, 25 degrees Celsius, we can simplify this expression into the following expression. So, let's rewrite this expression. Cell voltage E is equal to a constant times a constant outcase because T is 298 in Kelvin. 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?