College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 15, Problem 29P
(a)
To determine
The number of
(b)
To determine
The percentage of
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A 5.0liter gas tank holds 1.7 moles of monatomic helium (He) and 1.10 mole of diatomic oxygen (O2), at a temperature of 260 K. The ATOMIC masses of helium and oxygen are 4.0 g/mol and 16.0 g/mol, respectively. what is the ratio of the root-mean-square (thermal) speed of helium to that of oxygen?
a. 2.8
b. 2.0
c. 1.4
d. 4.0
The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed.
where ?=8.314 J/(mol⋅K) and ℳ is molar mass in kilograms per mole. Note that a joule is the same as a kilogram‑meter squared per second squared (kg·m2/s2).
What is the rms speed of Cl2 molecules at 401 K?
What is the rms speed of He atoms at 401401 K?
A 5.00-mol sample of oxygen gas is confined to a pressure of 5 atm at a temperature of 27 degrees Celsius.
What is the root-mean-square velocity of a single oxygen gas molecule? (*Solution required)
a. 0.48 m/s
b. 15.28 m/s
c. 483.63 m/s
d. 1.53 x 10⁴ m/s
Chapter 15 Solutions
College Physics (10th Edition)
Ch. 15 - In the ideal-gas equation could you give the...Ch. 15 - True or false? Equal masses of two different gases...Ch. 15 - How does evaporation of perspiration from your...Ch. 15 - The ideal-gas law is sometimes written in the form...Ch. 15 - (a) If you double the absolute temperature of an...Ch. 15 - Chemical reaction rates slow down as the...Ch. 15 - True or false? When two ideal gases are mixed,...Ch. 15 - Is it possible for a gas to expand and lose energy...Ch. 15 - The gas inside a balloon will always have a...Ch. 15 - When a gas expands adiabatically, it does work on...
Ch. 15 - Since Cv is defined with specific reference to a...Ch. 15 - The ratio y found in Equations 15.22 and 15.23...Ch. 15 - Prob. 1MCPCh. 15 - Prob. 2MCPCh. 15 - Prob. 3MCPCh. 15 - Prob. 4MCPCh. 15 - Prob. 5MCPCh. 15 - Prob. 6MCPCh. 15 - Assume you have n moles of an ideal gas initially...Ch. 15 - The formula U = nCvT for the change in the...Ch. 15 - For the process shown in the pV diagram in Figure...Ch. 15 - Prob. 10MCPCh. 15 - The gas shown in Figure 15.29 is in a completely...Ch. 15 - Prob. 12MCPCh. 15 - A cylindrical tank has a tight-fitting piston that...Ch. 15 - Prob. 2PCh. 15 - A 3.00 L tank contains air at 3.00 atm and 20.0C....Ch. 15 - A 20.0 L tank contains 0.225 kg of helium at...Ch. 15 - A room with dimensions 7.00 m by 8.00 m by 2.50 m...Ch. 15 - Three moles of an ideal gas are in a rigid cubical...Ch. 15 - A large cylindrical tank contains 0.750 m3 of...Ch. 15 - A 1.0 L canister contains 0.2 mole of helium gas....Ch. 15 - The gas inside a balloon will always have a...Ch. 15 - Prob. 10PCh. 15 - A diver observes a bubble of air rising from the...Ch. 15 - At an altitude of 11,000 m (a typical cruising...Ch. 15 - If a certain amount of ideal gas occupies a volume...Ch. 15 - Calculate the volume of 1.00 mol of liquid water...Ch. 15 - What volume does 2 mol of hydrogen gas (H2) occupy...Ch. 15 - The atmosphere of the planet Mars is 95.3% carbon...Ch. 15 - Find the mass of a single sulfur (S) atom and an...Ch. 15 - Prob. 18PCh. 15 - In the air we breathe at 72F and 1.0 atm pressure,...Ch. 15 - We have two equal-size boxes. A and B. Each box...Ch. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - A container of helium gas is heated until the...Ch. 15 - If 5 g of liquid helium is converted into a gas at...Ch. 15 - At what temperature is the root-mean-square speed...Ch. 15 - Where is the hydrogen? The average temperature of...Ch. 15 - Prob. 27PCh. 15 - STP. The conditions of standard temperature and...Ch. 15 - Prob. 29PCh. 15 - (a) How much heat does it take to increase the...Ch. 15 - (a) If you supply 1850 J of heat to 2.25 moles of...Ch. 15 - Suppose 100 J of heat flows into a diatomic ideal...Ch. 15 - Perfectly rigid containers each hold n moles of...Ch. 15 - Assume that the gases in this problem can be...Ch. 15 - A metal cylinder with rigid walls contains 2.50...Ch. 15 - A gas under a constant pressure of 1.50 105 Pa...Ch. 15 - Two moles of an ideal gas are heated at constant...Ch. 15 - Three moles of an ideal monatomic gas expand at a...Ch. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - A gas in a cylinder expands from a volume of 0.110...Ch. 15 - A gas in a cylinder is held at a constant pressure...Ch. 15 - Five moles of an ideal monatomic gas with an...Ch. 15 - When a system is taken from state a to state b in...Ch. 15 - An ideal gas expands while the pressure is Kept...Ch. 15 - You are keeping 1.75 moles of an ideal gas in a...Ch. 15 - Prob. 47PCh. 15 - A cylinder with a movable piston contains 3.00 mol...Ch. 15 - Figure 15.32 show a pV diagram for an ideal gas in...Ch. 15 - Figure 15.33 shows a pV diagram for an ideal gas...Ch. 15 - The pV diagram in Figure 15.34 shows a process abc...Ch. 15 - A volume of air (assumed to be an ideal gas) is...Ch. 15 - In the process illustrated by the pV diagram in...Ch. 15 - A cylinder contains 0.250 mol of carbon dioxide...Ch. 15 - Heating air in the lungs. Human lung capacity...Ch. 15 - The graph in Figure 15.37 shows a pV diagram for...Ch. 15 - An ideal gas at 4.00 atm and 350 K is permitted to...Ch. 15 - An experimenter adds 970 J of heat to 1.75 mol of...Ch. 15 - Heat Q flows into a monatomic ideal gas, and the...Ch. 15 - A player bounces a basketball on the floor,...Ch. 15 - In the pV diagram shown in Figure 15.38, 85.0 J of...Ch. 15 - Modern vacuum pumps make it easy to attain...Ch. 15 - Prob. 63GPCh. 15 - The effect of altitude on the lungs. (a) Calculate...Ch. 15 - (a) Calculate the mass of nitrogen present in a...Ch. 15 - An automobile tire has a volume of 0.0150 m3 on a...Ch. 15 - A student in a physics lab course has the task of...Ch. 15 - Prob. 68GPCh. 15 - Atmosphere of Titan. Titan, the largest satellite...Ch. 15 - Helium gas expands slowly to twice its original...Ch. 15 - A cylinder with a piston contains 0.250 mol of...Ch. 15 - You blow up a spherical balloon to a diameter of...Ch. 15 - A bicyclist uses a tire pump whose cylinder is...Ch. 15 - The bends. If deep-sea divers rise to the surface...Ch. 15 - 75. Figure 15.39 shows a pV diagram for 0.0040...Ch. 15 - Figure 15.40 Problem 76. The graph in Figure 15.40...Ch. 15 - A flask with a volume of 1.50 L, provided with a...Ch. 15 - Initially at a temperature of 80.0C, 0.28 m3 of...Ch. 15 - In a cylinder, 4.00 mol of helium initially at...Ch. 15 - Starting with 2.50 mol of N2 gas (assumed to be...Ch. 15 - Insulating windows. One way to improve insulation...Ch. 15 - Estimate the ratio of the thermal conductivity of...Ch. 15 - The rate of effusionthat is, the leakage of a gas...Ch. 15 - Prob. 84PPCh. 15 - In another test, the gas is put into a cylinder...Ch. 15 - You have a cylinder that contains 500 L of the gas...Ch. 15 - In a hospital, pure oxygen may be delivered at 50...
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