11th Class Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव

  • question_answer 1)
      Value of universal gas constant (R) is same for all gases. What is the physical significance?

    Answer:

      1 mol gas occupies 22.4 L volume at S.T.P., i.e., at 273.15 K and 1 atm pressure. \[PV=nRT\] \[R=\frac{PV}{nT}=\frac{1\times 22.4}{1\times 273.15}=0.082L\,atm\,{{K}^{-1}}mo{{l}^{-1}}\]


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