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    All gases listed are at the same pressure. Which gas will most closely approach ideal behaviour?

    A ammonia at 100K
    B ammonia at 500K
    C neon at 100K
    D neon at 500K

    Answer is D. Can someone please explain why?
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    Think about intermolecular forces and what affects their strength.

    Do you know the properties of an ideal gas?
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    (Original post by Pigster)
    Think about intermolecular forces and what affects their strength.

    Do you know the properties of an ideal gas?
    Yes, i do. Molecules have no volume, particles can move anywhere, no forces between molecules & collision is perfectly elastic.
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    (Original post by Tetisya)
    no forces between molecules
    ...but real molecules are not ideal and there are 'forces between molecules', so what affects the strength of those forces?

    More specifically, what type/s of forces are acting between the molecules in your OP? And then, how will temperature affect those forces?
 
 
 
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