And when equilibrium is reached, we have this concentration of our potassium. So let's try to use this concentration and the nursed equation to calculate what the voltage difference is. So remember when we discussed the chemistry of neurons? We said that the Neuron is basically a concentration cell. And we can use the nurse equation to calculate what the voltage difference is between the inside and the outside of the cell due to our potassium ions. So 2.3 multiplied by R, the Gas constant 8.3, 114 multiplied by T, the temperature Inside the body.