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Thread: PV=nRT demonstration

  1. #1 PV=nRT demonstration 
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    Here's a little demonstration video I made recently crushing a steel drum with air pressure.

    http://www.metacafe.com/watch/505269...n_silent_film/


    let me know what you think as feedback is much appreciated = )

    I'm new to the forum but I'll be doing physics for undergrad and this place looks pretty interesting/useful!

    I hoe I posted in the right subforum?


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  3. #2  
    Forum Ph.D.
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    Welcome to the forum!
    I'm relatively new m'self.
    Perhaps you could have posted it in the physics or chemistry section?
    ---------
    The video was quite...interesting. I never did do that experiment (with the can); I never did Chem 1...I jumped straight to AP. Oh well. Crushing a steel drum...wow.


    Whence comes this logic: no evidence = false?

    http://www.atheistthinktank.net/thinktank/index.php

    Theists welcome.
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  4. #3  
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    I think I remember seeing Professor Irwin Corey do something like that on the old Steve Allen show. That will give you a clue how old I am.
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  5. #4  
    WYSIWYG Moderator marnixR's Avatar
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    it's just a large version of a standard collapse test that is often carried out on food cans

    as you may (or may not) know, food cans get filled, sealed and then go through an in-the-can cooking process

    on cooling you don't want to find that the can has collapsed, so the can wall needs to be strong enough to withstand a mild underpressure inside

    that's why a food can has beaded walls - it strengthens the can wall against collapse (or did you think it was mere decoration ?)

    btw i notice your big can did not have such wall reinforcements :wink:
    "Reality is that which, when you stop believing in it, doesn't go away." (Philip K. Dick)
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