And we see that this quantity, so Delta V is so we have to use V, not milliv. And so it's negative zero point 45. And we multiply these out and we get a negative quantity. So Delta G is equal to negative 4342 joules per mole. And so we see that once we open up the channel, because there exists this electrical gradient. So we have a high electrical potential on this side, a low electrical potential on the other side.