How can you show that pressure exerted by air on the wall of container?
take an empty tin mobil oil can with a screwable lid and put some water into it and heat it with d lid open then as u see the steam coming out put the heating source off and screw the mobilcan as fast as possible then put ice cold water onto the can and u will see the can gettting crushed thus when u put off the heating source and lid d can ad put cold water onyo it the steam in side turns 2 water thus creating a partial vacuum on which the atmospheric pressure acts thus crushing the can
