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CMC Medical CMC-Medical VELLORE Solved Paper-2007

  • question_answer
    8.2 L of an ideal gas weigh 9.0 at 300 K and 1 atm pressure. The molecular mass of gas is

    A)  9                                            

    B)  27

    C)  54                                         

    D)  81

    Correct Answer: B

    Solution :

                    Idea gas equation is \[PV=nRT=\frac{w}{M}RT\] \[M=\frac{wRT}{PV}\]       \[=\frac{9\times 0.0821\times 300}{1\times 8.2}=27\]


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