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Real vs. Ideal

Discussion in 'DAT Discussions' started by nixon13, May 30, 2008.

  1. nixon13

    7+ Year Member

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    Could someone please explain the differences between real gases and ideal gases, what they are, and which equations go with which gas? Thank you. :D
     
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  3. Optimism Smiles

    Optimism Smiles DAT drains my ATP
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    I think I read yesterday that no gas behaves 100% ideally but under certain conditions (such as low pressure and high temperatures) gases behave nearly ideally. Then you can use the ideal gas law...
     
  4. doc3232

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    Well, it is chemistry so as you expect, nothing is ideal. You can never find exact info using PV=nRT.
    So always just assume it is ideal and use that equation.
    But you should that why nothing is an ideal gas.
     
  5. Sea of ASH

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    ideal gas is basically a hypothetical situation. we just assume that 1) there are no intermolecular forces between the gas molecules and 2) occupy a negligable volume compared to the container. this is done so that PV=nRT can be used to calculate stuff.

    real gases are exactly that... real lol. that formula is not valid anymore, but if we just tweek it a bit to take into considerations those two assumptions, we are good to go.

    Hope that helped!
     
  6. nixon13

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    thanks a lot guys, idk where i would be without this forum! :hardy:
     
  7. userah

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    i'll tell you where. a couple points less on the DAT. haha =)
     

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