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Question: Answered & Verified by Expert
An HCl molecule has rotational, translational and vibrational motions. If the rms velocity of HCl molecules in its gaseous phase is ν- , m is its mass and kB is Boltzmann's constant, then its temperature will be:
PhysicsKinetic Theory of GasesJEE MainJEE Main 2019 (09 Apr Shift 1)
Options:
  • A mν- 25kB
  • B mν- 26kB
  • C mν- 23kB
  • D mν- 27kB
Solution:
1680 Upvotes Verified Answer
The correct answer is: mν- 23kB
Vrms=3kBTm 
v-=3kBTm
T=mv-23kB

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