CHEMISTRY
2nd Edition
ISBN: 9781593995782
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 9, Problem 103E
For which of the following gases should the correction for the molecular volume be largest:
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The ideal gas law, PV = nRT is independent of
the kind of gas. In other words, the pressure exerted
by a given number of ideal gas particles is the same
whether the sample consists of all one type of
particle or a mixture of different kinds of particles.
Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air
molecules.
Therefore, the pressure exerted by a mixture of
gases can be expressed as follows:
Part A
Tota RT
Ptotal =
V
What is the partial pressure of nitrogen in air at atmospheric pressure (101 kPa)? Assume ideal behaviour.
A partial pressure is the pressure exerted by just one
type of gas in a mixture. A partial pressure is
calculated using only the number of moles of that
particular gas, instead of the total number of moles:
Express your answer to three significant figures and include the appropriate units.
• View Available Hint(s)
RT
P =
V
P = nRT
P= nRT
etc.
The sum of the partial pressures is equal to the total…
A 1.00 L rigid cylinder contains one mole of neon gas at 25 °C. Calculate the pressure
using (a) the ideal gas law, and (b) the van der Waals equation
(c) A much more accurate equation is the virial equation,
В (Т)
+
Vm
С (Т)
pVm
1+
RT
where B(T) and C(T)
and C(T) are 11.42 cm3 mol1 and 221 cm6 mol2, respectively. Assuming the pressure
calculated using the virial equation is the "true" value, determine the percent error by
using ideal gas law and van der Waals equation
are functions of temperature. For neon at 25°C, the values of B(T)
sulfur
Chapter 9 Solutions
CHEMISTRY
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