In the isothermal expansion of $10\,g$ of gas from volume $V$ to $2V$ the work done by the gas is $575\,J$. What is the root mean square speed of the molecules of the gas at that temperature ..... $m/s$?
  • A$398$
  • B$520$
  • C$499$
  • D$532$
JEE MAIN 2013, Medium
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