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Thread: Are these statements correct?

  1. #1 Are these statements correct? 
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    Hi Everyone:

    I am writing an essay and would appreciate it if you would check the accuracy of these statements, and let me know how you would correct them, if they weren't accurate. Thanks!

    Physicists know that the different states of matter are defined at a minute level. A rock is made up of atoms which vibrate at a certain speed. The slower the speed, the more solid the object. This means that molecules which comprise the rock vibrate at a slower speed than those which crystallize to form ice. Ice has a grosser rate of vibration than water, which has a grosser frequency than air, and so on.

    -Charles
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  2. #2  
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    Welcome to the forum.! Ok, these vibrations you are discussing, are they related to the temperature of the object?
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  3. #3  
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    Quote Originally Posted by Jilan View Post
    Welcome to the forum.! Ok, these vibrations you are discussing, are they related to the temperature of the object?
    No. I just meant these statements in a general way... Thanks!
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  4. #4  
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    So what sort of vibrations are you discussing?
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  5. #5  
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    Quote Originally Posted by Jilan View Post
    So what sort of vibrations are you discussing?
    Atoms are constantly in movement. Is this movement slower the more solid an object, and faster in the case of liquids and gasses?
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  6. #6  
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    solids atoms are in a fixed lattice, their vibration (kinetic energy) increases with temperature. An atom in a solid at room temperature is pretty fixed in its location... however solid state diffusion can proceed through solids and this occures much faster when the solids are hot, for example carbon in steel at 1000C. solids are not easily compressed

    liquids atoms are in close contact but slipping, sliding, moving around each other. A liguid gets less viscous (less viscosity = more fluidity) as temperature increases. liquids are not easily compressed

    gases atoms are zipping around and bouncing off each other. Gases are very easily compressed up to the point they get as dense as liquids. A gas gets more viscous (more viscosity = less fluidity) as temperature increases.

    Plasmas to me are in stars, in neon lights, in forms of high temperature process. not my field
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  7. #7  
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    Quote Originally Posted by pikpobedy View Post
    solids atoms are in a fixed lattice, their vibration (kinetic energy) increases with temperature. An atom in a solid at room temperature is pretty fixed in its location... however solid state diffusion can proceed through solids and this occures much faster when the solids are hot, for example carbon in steel at 1000C. solids are not easily compressed

    liquids atoms are in close contact but slipping, sliding, moving around each other. A liguid gets less viscous (less viscosity = more fluidity) as temperature increases. liquids are not easily compressed

    gases atoms are zipping around and bouncing off each other. Gases are very easily compressed up to the point they get as dense as liquids. A gas gets more viscous (more viscosity = less fluidity) as temperature increases.

    Plasmas to me are in stars, in neon lights, in forms of high temperature process. not my field
    Thank you. This is very helpful!
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  8. #8  
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    Quote Originally Posted by cshahar
    Physicists know that the different states of matter are defined at a minute level. A rock is made up of atoms which vibrate at a certain speed. The slower the speed, the more solid the object.
    There is a point where the temperature is so low that the object becomes fragile though. For example; if you dunk a tennis ball into liquid nitrogen and then drop it on the floor it will break into a bunch of pieces.
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