The variation of concentration of C O 2 in a large city should be predicted on the basis of given average concentration value of carbon dioxide. Concept introduction: Carbon dioxide is one of the major anthropogenic greenhouse gases and its concentration on a large scale, all over the world makes harmful effect to the earth and to the living systems on earth. Its concentration varies in accordance with the changes in season and climate in a particular area. Large increase in the number of automobiles, also enhance the concentration of carbon dioxide in a great extent. Parts per million (ppm): It is one of the important concentration expressing terms, and which describes grams of solute per million grams of total solutions. ppm = Mass of solute Mass of solution ×10 6

Question

An expression for the root mean square velocity, vrms, of a gas was derived. Using Maxwell’s velocity distribution, one can also calculate the mean velocity and the most probable velocity (mp) of a collection of molecules. The equations used for these two quantities are vmean=(8RT/πM)1/2 and vmp=(2RT/M)1/2 These values have a fixed relationship to each other.(a) Arrange these three quantities in order of increasing magnitude.(b) Show that the relative magnitudes are independent of the molar mass of the gas.(c) Use the smallest velocity as a reference for establishing the order of magnitude and determine the relationship between the larger and smaller values.

Answer 1

Question

Chapter 20, Problem 2PS

Interpretation Introduction

Interpretation:

The variation of concentration of CO2 in a large city should be predicted on the basis of given average concentration value of carbon dioxide.

Concept introduction:

Carbon dioxide is one of the major anthropogenic greenhouse gases and its concentration on a large scale, all over the world makes harmful effect to the earth and to the living systems on earth. Its concentration varies in accordance with the changes in season and climate in a particular area.

Large increase in the number of automobiles, also enhance the concentration of carbon dioxide in a great extent.

Parts per million (ppm): It is one of the important concentration expressing terms, and which describes grams of solute per million grams of total solutions.

ppm = Mass of soluteMass of solution ×106

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