Atkins' Physical Chemistry
Atkins' Physical Chemistry
11th Edition
ISBN: 9780198769866
Author: ATKINS, P. W. (peter William), De Paula, Julio, Keeler, JAMES
Publisher: Oxford University Press
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Chapter 19, Problem 19A.2BE
Interpretation Introduction

Interpretation:

The nitrogen gas pressure required to create given collision rate at 525K on circular path surface with 2 mm diameter has to be calculated.

Concept Introduction:

The surface which is exposed to gas gets constantly attacked that result in formation of freshly prepared surface very quickly. This quick formation can be estimated using kinetic theory of gas which derive expression for collision flux, Zw as follows,

    Zw = p(2πMkTNA)

Here,    p = Pressure

    NA = Avogadro’s number

    M = Molar mass

    k = Boltzmann’s constant

    T = Temperature.

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