Question

Describe an activity that shows air exerts pressure in all darictions

Answer 1

Explanation:

Procedure - Take a tin-can having an air tight cap (screw cap). Remove the cap and boil some water in it, so that steam comes out and in this way air from inside goes out. While boiling replace the cap and allow it to cool. Vapours inside condense and form water creating vacuum above them.

Answer 2

Answer:

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If the volume of the gas is kept constant , its pressure increases with the increase in temperature. For example, when the air is suck out of a bottle, the air present out side it exerts pressure in all possible directions of bottle . Due to this reason the bottle gets crushed.