CMC Medical CMC-Medical Ludhiana Solved Paper-2015

  • question_answer
    At a given temperature, the amount of dissolved gas in unit volume of the solvent is proportional to the pressure of gas. The given statement is based upon

    A)  Raoults law

    B)  Kohlrausch law

    C)  Henrys law

    D)  None of the above

    Correct Answer: C

    Solution :

                    The given statement is based upon Henrys law. Henrys law is application of the distribution law for the equilibrium between gas and its solution in liquid. \[{{C}_{1}}=\]concentration of gas in liquid \[{{C}_{2}}=\] concentrationin in vapour form                 \[k=\frac{{{C}_{1}}}{{{C}_{2}}}\] If m is the mass of gas dissolved by unit volume of solvent at equilibrium pressure \[p,\]then \[m\propto p\] \[m={{K}_{H}}p\] \[{{K}_{H}}=\]Henrys constant


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