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What is the density of CO2 gas at -25.2 degrees celsius and 98.0kPa?

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asked by lavonne
  1. PV=nRT

    density =mass/volume =mass/V

    n=mass/M where M = molar mass

    PV=mass R T /M

    rearrange

    PM/RT=mass/V=density

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    posted by Dr Russ
  2. Oh and with questions like this it is worth making sure that the question makes sense.

    In this case -25.2 degrees celsius and 98.0kPa is located below and to the right of the triple point for CO2 see

    http://stevengoddard.files.wordpress.com/2010/09/co2_phase_diagram.gif?w=500&h=380

    and so is definitely a gas.

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    posted by Dr Russ

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