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Physical Nature of Matter

in liquids,is...

Question

in liquids,is pressure directly proportional to force and inversly
proportional to area? it is true in case of solids,is it true for liquids and gases also?

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Solution

$T h e g e n e r a l d e f i n i t i o n o f p r e s s u r e i s f o r c e / a r e a . S o f o r s o l i d s, l i q u i d s a n d g a s e s t h e p r e s s u r e i s d i r e c t l y p r o p o r t i o n a l t o f o r c e a n d i n v e r s e l y p r o p o r t i o n a l t o a r e a . W e c a n s e e t h i s w e l l i n g a s e s . W h e n t h e p i s t o n i s c o m p r e s s e d, t h e a r e a b e c o m e s l e s s a n d p r e s s u r e b e c o m e s m o r e .$

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