Question

Place a pyrex glass funnel with its mouth down in a saucepan full of water, in such a way that the stem tube of the funnel is above the water or pointing upwards into air. Rest the edge of the bottom portion of the funnel on a nail or a coin so that water can get under it. Place the pan on the stove and heat it till it began to boil. Where do the bubble form first?. Why?

Answer 1

it form inside of pyrex glass tube

Answer 2

Explanation:

here is your answer friend