This is how I understand the working of an electrochemical cell: We have two beakers, the first contains a zinc road immersed in zinc sulfate solution and the second one is provided with a copper road dipped in the copper sulfate solution. We then connect both the roads with a wire fitted with a bulb and we have our bulb lightening. I was told that the zinc road is ionizing and producing zinc ions and electrons. These electrons then go towards the copper road through the wire and react with the copper ions there in the copper sulfate solution. This setup will work fine until our zinc road is consumed completely. Now following questions pop up into my mind while thinking about this:
- Why does the zinc road immersed in its sulfate solution gives off electrons whereas no such thing happens with the copper road?
- Why do the electrons travel along the wire at all? What the heck do they care about and why only the electrons? ( I know they are charged particles ) since there are other charged particles too ( Zinc ions, sulfate ions, copper ions ).
Please provide an answer from a layman's perspective.