JEE Main20199 Apr 2019Morning ShiftPhysicsKinetic Theory of GasesActual
An H C l molecule has rotational, translational and vibrational motions. If the rms velocity of H C l molecules in its gaseous phase is ν - , m is its mass and k B is Boltzmann's constant, then its temperature will be:
Options
- Am ν - 2 5 k B
- Bm ν -   2 6 k B
- Cm ν -   2 3 k B
- Dm ν - 2 7 k B
Correct answer
C. m ν -   2 3 k B
Step-by-step solution
V r m s = 3 k B T m   v - = 3 k B T m T = m v - 2 3 k B