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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2009

  • question_answer
    Root means square speed of the molecules of ideal gas is\[v\]. If pressure is increased two times at constant temperature, then the rms speed will become

    A)  \[\frac{v}{2}\]              

    B)  \[v\]

    C)  \[2v\]                 

    D)  \[4v\]

    Correct Answer: A

    Solution :

     Rms speed of gas molecules does not depends on the pressure of gas (if temperature remains constant) because\[p\propto p\]. If pressure is increased n times density will also increase by ji times but\[{{v}_{rms}}\]remains constant.


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