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Question: Answered & Verified by Expert
The temperature of an ideal gas is increased from 100 K to 400 K . If the rms speed of the gas molecule is V at 100 K , then at 400 K it becomes
PhysicsKinetic Theory of GasesJEE Main
Options:
  • A 2V
  • B 4V
  • C 0.5V
  • D V
Solution:
1949 Upvotes Verified Answer
The correct answer is: 2V
  rms speed of molecule VrmsT

for T=100 K

Vrms1100

For T=400 K

Vrms2400

therefore, Vrms1Vrms2=100400

or VVrms2=12

or Vrms2=2V

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