τ=2nπd2vavg1
Where n= number of molecules per unit volume.
τ∝TV⇒τ∝PT
τ1τ2=T1T2.P2P1⇒τ2=6×10−8×3005000×42
≈4×10−8s
An ideal gas is enclosed in a cylinder at pressure of 2 atm and temperature, 300K. The mean time between two successive collisions is 6×10−8s. If the pressure is doubled and temperature is increased to 500K, the mean time between two successive collisions will be close to:
Held on 12 Jan 2019 · Verified 6 Jul 2026.
2x10−7s
3x10−6s
0.5x10−8s
4x10−8s
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