Nitrogen molecules (N2) are moving all around you right now at room temperature (~300 K). Take the radius of a single nitrogen atom to be 0.1 nm (1 nm = 10^-9 m) and the density of air in this room to be 1.2 kg/m^3. A nitrogen molecule contains a total of 28 nucleons (protons and neutrons). You can approximate the air as being 100% N2 for this problem. a) What is the effective cross-sectional area of a nitrogen molecule) b) Determine the number density of nitrogen molecules in the room. c) Calculate the mean free path of N2 in this environment. Explain in words what this value means.

Nitrogen molecules (N2) are moving all around you right now at room temperature (~300 K). Take the radius of a single nitrogen atom to be 0.1 nm (1 nm = 10^-9 m) and the density of air in this room to be 1.2 kg/m^3. A nitrogen molecule contains a total of 28 nucleons (protons and neutrons). You can approximate the air as being 100% N2 for this problem. a) What is the effective cross-sectional area of a nitrogen molecule) b) Determine the number density of nitrogen molecules in the room. c) Calculate the mean free path of N2 in this environment. Explain in words what this value means.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter3: Chemical Reactions

Section3.9: Classifying Reactions In Aqueous Solution

Problem 2.2ACP

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