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Question

A sample of a perfect gas occupies a volume v at a pressure P and obsolete temperature T. The mass of each molecule is m, which of the following expression s given the number of molecules in the sample?

  1. fraction numerator P V over denominator m end fraction
  2. fraction numerator k over denominator P V T end fraction
  3. m over k
  4. fraction numerator P V over denominator k T end fraction

The correct answer is: fraction numerator P V over denominator k T end fraction


    P V equals mu R T comma P V equals n over N cross times h N T text  or  end text n equals fraction numerator P V over denominator k T end fraction

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