Verified Solution • 2025–26 Session moderate

QJEEM19Ph8eb3: JEE Main 2019 Physics - Class 11 JEEM19Ph8eb3 Solution: For a given gas at 1 atm pressure, rms speed of the molecule is …

For a given gas at 1 atm pressure, rms speed of the molecule is 200 m/s at 127°C. At 2 atm pressure and at 227°C, the rms speed of the molecules will be :

Multiple Choice Options

  • A 100 m/s
  • B 100 5 m/s
  • C 80 5 m/s
  • D 80 m/s

Step-by-Step Verified Solution

Vrms=3RTMw

⇒Vrms∝T

Now, v200=500400

⇒v200=52

⇒v=1005 m/s

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