For a given gas at $1\,atm$ pressure, $rms$ speed of the molecules is $200\,m/s$ at $127\,^oC.$ At $2\,atm$ pressure and at $227\,^oC,$ the $rms$ speed of the molecules will be
  • A$80\,m/s$
  • B$100\sqrt {5}\,m/s$
  • C$100\,m/s$
  • D$80\sqrt {5}\,m/s$
JEE MAIN 2019, Medium
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