J & K CET Medical J & K - CET Medical Solved Paper-2000

  • question_answer
    Five grams of the following gas at\[{{87}^{o}}C\]and 750 mm pressure is taken. The gas with least volume is:

    A)  \[HF\]                                 

    B) \[HCl\]

    C)  \[HBr\]                               

    D) \[HI\]

    Correct Answer: D

    Solution :

                           \[PV=nRT\] \[PV=\frac{W}{M}RT\] \[V\propto \frac{1}{M}\] As the molecular mass increases, the volume of gas decreases. Hence, the volume of HI is minimum because its molecular weight is highest.


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