Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337671729
Author: SERWAY
Publisher: Cengage
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Question
Chapter 18, Problem 21P
(a)
To determine
The number of moles of an ideal gas.
(b)
To determine
The mass of one cubic meter of air.
(c)
To determine
To explain: The way in which the mass of one cubic meter of air can be compared with the tabulated density of the air at
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Students have asked these similar questions
a) Calculate the volume in ft of one Ib-mole of air (MW = 29 lbm/lb-mole) at a temperature of 492 R at a
pressure of 1 atm (absolute).
b) Repeat the calculation of a) but now considering 1 Ib-mole of CO2 (MW= 44 lbmlb-mole).
c) Calculate the molar volume (V) of this mole of air in ft'/lb-mole.
d) Calculate the density (P) of air in Ibm/ft under these conditions
e) Calculate the density (p) of CO, in Ib.m/ft under these conditions
The gas constant R has the value 287 J/Kg * K for dry air. Using the ideal
gas law (P = PanyRT):
a) Find the density of dry air at 72.05 "F with a pressure of 1095 mb.
b.) Find the density of molst air at the same pressure and temperature if the
relative humidity is 60%.
HINT: (for o) stick with Si units (for b) Find e, given T(see lecture slides). Find e given RH. Find pos from:
P
0.378e
0.378e
Pmoist
1
or
Pmoist = Pary
RT
P
Question 2.
1.60 x 106 Pa. Find
(a) the temperature of the gas and
(b) the average kinetie energy of a gas molecule in the vessel.
(c) If the volume is increased to 9.00 L and the temperature is kept constant, what
is the new pressure (in Pa)?
A 7.00-L vessel contains 3.50 moles of ideal gas at a pressure of
Chapter 18 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 18.1 - Prob. 18.1QQCh. 18.3 - Consider the following pairs of materials. Which...Ch. 18.4 - If you are asked to make a very sensitive glass...Ch. 18.4 - Prob. 18.4QQCh. 18.5 - A common material for cushioning objects in...Ch. 18.5 - On a winter day, you turn on your furnace and the...Ch. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Liquid nitrogen has a boiling point of 195.81C at...
Ch. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - A copper telephone wire has essentially no sag...Ch. 18 - Prob. 8PCh. 18 - The Trans-Alaska pipeline is 1 300 km long,...Ch. 18 - Prob. 10PCh. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Why is the following situation impossible? A thin...Ch. 18 - A volumetric flask made of Pyrex is calibrated at...Ch. 18 - Review. On a day that the temperature is 20.0C, a...Ch. 18 - Prob. 17PCh. 18 - Prob. 18PCh. 18 - An auditorium has dimensions 10.0 m 20.0 m 30.0...Ch. 18 - Prob. 20PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - In state-of-the-art vacuum systems, pressures as...Ch. 18 - Prob. 24PCh. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - The pressure gauge on a cylinder of gas registers...Ch. 18 - Prob. 30APCh. 18 - Prob. 31APCh. 18 - Why is the following situation impossible? An...Ch. 18 - A student measures the length of a brass rod with...Ch. 18 - Prob. 34APCh. 18 - A liquid has a density . (a) Show that the...Ch. 18 - Prob. 36APCh. 18 - Prob. 37APCh. 18 - A bimetallic strip of length L is made of two...Ch. 18 - Prob. 39APCh. 18 - A vertical cylinder of cross-sectional area A is...Ch. 18 - Prob. 41APCh. 18 - Prob. 42APCh. 18 - Prob. 43APCh. 18 - Prob. 44CPCh. 18 - A 1.00-km steel railroad rail is fastened securely...Ch. 18 - Prob. 46CP
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