The mean free path of a gas, I, is defined as the average distance traveled by molecules between collisions. A proposedformula for estimating /of an ideal gas is l = 1.26-PVRT Use the formula to estimate the mean free path of air at 20°C and 7 kPa. Assume the viscosity of air to be equal to 1.80E-5 N-s/m2.E-7 m

Pressure = 7 kpa Temperature = 20 C Viscosity of air = 1.80E-5 N.s/m2

Answered: The mean free path of a gas, I, is…

The mean free path of a gas, I, is defined as the average distance traveled by molecules between collisions. A proposed formula for estimating /of an ideal gas is l = 1.26– PVRT

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.18P: The drag on an airplane wing in flight is known to be a function of the density of air (), the...

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A 7.62 mm caliber bullet travel in two different medium of gas of helium and nitrogen at constant speed of 1,548 miles per hour. The properties of the gas are given in Table 1. Cp (kJ/kg.K) Cv (kJ/kg.K) Temperature (K) Pressure (kPa) Table 1 Helium 5.192 3.115 300 unknown Nitrogen 1.039 b) Determine the March number of the bullet for both medium. 0.746 300 unknown a) Calculate the speed of sound in both medium (helium and nitrogen). c) Do you think that the shockwave occurs in this bullet travel for both medium of gas? Sketch your ideas of this bullet travel and the shock wave (if available).
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