If a drop of water falls on a very hot iron, it takes long time to evaporate. Explain why?

If a drop of water falls on a very hot iron, it takes long time to eva

1.	If a drop of water falls on a very hot iron, it takes long time to evaporate. Explain why?
Answer» Solution :When a drop of WATER falls on a very hot iron it gets insulated from the hot iron due to a thin LAYER of water VAPOUR which is a bad conductor of heat. It takes quite LONG to evaporate as heat is conducted from hot iron to the drop through the insulating layer of water vapour very slowly.