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Get Full Access to Atkins' Physical Chemistry - 11 Edition - Chapter 14d - Problem E14d.5(a)
Get Full Access to Atkins' Physical Chemistry - 11 Edition - Chapter 14d - Problem E14d.5(a)

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ISBN: 9780198769866 2042

## Solution for problem E14D.5(a) Chapter 14D

Atkins' Physical Chemistry | 11th Edition

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Atkins' Physical Chemistry | 11th Edition

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Problem E14D.5(a)

What is the probability that the ends of a polyethene chain of molar mass $$65 \mathrm{~kg} \mathrm{~mol}^{-1}$$ are 10nm apart when the polymer is treated as a onedimensional freely jointed chain?

Text Transcription:

65 kg mol^-1

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Gases Deviation from Ideal Behavior Deviations from Ideal Behavior All real gasses fail to obey the ideal gas law to varying degrees The ideal gas law can be written as: For a sample of 1.0 mol of gas, n = 1.0 and therefore: Plotting PV/RT for various gasses as a function of pressure, P:  The deviation from ideal behavior is large at high pressure  The deviation varies from gas to gas  At lower pressures (<10 atm) the deviation from ideal behavior is typically small, and the ideal gas law can be used to predict behavior with little error Deviation from ideal behavior is also a function of temperature:  As temperature increases the deviation from ideal behavior decreases  As temperature decreases the deviation increases, with a maximum deviation near the temperature at which the gas becomes a liquid Two of the characteristics of ideal gases included:  The gas molecules themselves occupy no appreciable volume  The gas molecules have no attraction or repulsion for each other Real molecules, however, do have a finite volume and do attract one another  At high pressures, and low volumes, the intermolecular distances can become quite short, and attractive forces between molecules becomes significant o Neighboring molecules exert an attractive force, which will minimize the interaction of molecules with the container walls. And the apparent

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