Pressure Exerted by Gas
What will happen if:-
a}An empty can is filled with small quantity of water and boiled for a minutes until the steam has driven out the air and the can is closed tightly after that. Now to cool it down some cold water is poured.
What will happen if:-
b} Folded newspaper are kept into a plastic bad and the air is blew into the bag.

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Solution

$1 . W h e n c o l d w a t e r i s p o u r e d o n t h e c a n c o n \tan i n g b o i l e d w a t e r, t h e l i d o f w h i c h i s t i g h t l y c l o s e d t h e n t h e s h a p e o f t h e c a n i s d e s h a p e d f r o m a l l d i r e c t i o n s . 2 . O n b l o w i n g t h e p l a s t i c b a g c o n t a i n i n g f o l d e d p a p e r s, t h e f o l d e d p a p e r s g e t s t u c k t o t h e i n n e r s u r f a c e o f t h e b a g . T h i s h a p p e n s b e c a u s e o f t h e P a s c a l s l a w o f p r e s s u r e t r a n s m i s s i o n .$

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