If the collision frequency of hydrogen molecules in a closed chamber at 27°C is Z, then the collision frequency of the same system at 127°C is:
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If the collision frequency of hydrogen molecules in a closed chamber at 27°C is Z, then the collision frequency of the same system at 127°C is:

G1 Physics · Accepted Answer

Assuming mean free path remains constant: Collision frequency ∝ average molecular speed and: v ∝ √T Therefore: f₂/f₁ = √(T₂/T₁) = √(400/300) = √(4/3) = 2/√3 Hence: f₂ = (2/√3)Z