Value of reduced temperature equal to that of reduced pressure?

  1. I only know that a pure gas at same reduced temperature and reduced pressure will have same compressibility factor.
    But I wondered is this correct? value of reduced temperature equal to that of reduced pressure?
    from
    http://www.answers.com/topic/law-of-corresponding-states


    One more question,from wiki "In order to obtain a generalized graph that can be used for many different gases, the reduced pressure and temperature, and , are used to normalize the compressibility factor data. " What is the experiment? and How to draw the generalized graph ?
    from
    http://en.wikipedia.org/wiki/Compressibility_factor

    THANK YOU
     
  2. jcsd
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