So in the end we get 212,300 joules of work. It's produced is released in the form of moving electrons or moving charge from the anode to the capital from this battery. And this amount of energy can be used to do useful work. For example, run a motor or power a light bulb, for example. So this becomes very useful and we'll do many more examples using this in the future. So I already spoke about this briefly in another lecture, but I want to talk about it once more.