Q. Most probable velocity of gas molecules is proportional to:

गैस अणुओं का सर्वाधिक संभावित वेग आनुपातिक है:

A
√T
√टी
B
T
टी
C
1/T
1/टी
D

टी²

Explanation

The most probable velocity (v_mp) is the velocity at which the maximum number of molecules move in a Maxwell-Boltzmann distribution.

Formula: v_mp = √(2RT/M) = √(2kT/m)

Temperature dependence:

  • v_mp ∝ √T
  • This is the same relationship as rms velocity

Maxwell-Boltzmann distribution velocities:

  1. Most probable: v_mp = √(2RT/M)
  2. Average: v_avg = √(8RT/πM)
  3. Root mean square: v_rms = √(3RT/M)

Relationship: v_mp < v_avg < v_rms

Physical interpretation:

  • Higher temperature → faster molecular motion
  • Square root relationship due to kinetic energy ∝ T

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