Conceptual Integrated Science
3rd Edition
ISBN: 9780135197394
Author: Hewitt, Paul G., LYONS, Suzanne, (science Teacher), Suchocki, John, Yeh, Jennifer (jennifer Jean)
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 12, Problem 95TE
To determine
To state:
The reason as to why breathing a mixture of helium and oxygen rather than air helps divers in getting bends.
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In order to draw air into your lungs, your diaphragm and other muscles contract, increasing the lung volume. This lowers the air pressure of the lungs to below atmospheric pressure, and air flows in. When your diaphragm and other muscles relax, the volume of the lungs decreases, and air is forced out.
(a) If the total volume of your lungs at rest is 5.31 L and the initial pressure is 749 mmHg, what is the new pressure if the lung volume is increased to 5.45 L? mmHg(b) If the total volume of your lungs at rest is 5.31 L and the initial pressure is 749 mmHg, at what volume will the pressure be 769 mmHg? L
During inspiration, the volume of the lungs is actively increased by the action of the diaphragm. As
the volume of the lungs increases, the pressure within the lungs falls about 1 mmHg below
atmospheric pressure. Air rushes into the lungs due to this pressure difference.
Bronchi, Bronchial Tree, and Lungs
Larynx -
Primary bronchi
Secondary bronchi
Tertiary bronchi.
Bronchioles
Cardiac notch
Pulmonary artery
Trachea
Pulmonary vein
Alveolar duct Alveoli
This image is part of the Public Domain: https://upload.wikimedia.org/wikipedia/commons/d/db/Illu_bronchi_lungs.jpg
Fig. 1: The bronchi, bronchial trees, and the lungs.
(a) The diameter of the trachea (windpipe) is about 17 mm. What net force does the air experience
during inhalation?
F
net
=
N
(b) The flow rate of air entering the lungs is about 1.1
through the windpipe?
V
windpipe
=
ст
S
What is the velocity of air moving
S
If you are infusing a 1 L Iv bag of a normal saline at a rate of 100 ml per hour, how long will it take for the entire IV bag to infuse into the patient ?
Chapter 12 Solutions
Conceptual Integrated Science
Ch. 12 - How many electrons can occupy the first shell? How...Ch. 12 - Which electrons are represented by an electron-dot...Ch. 12 - Prob. 3RCCCh. 12 - How does an ion differ from an atom?Ch. 12 - To become a negative ion, does an atom lose or...Ch. 12 - Prob. 6RCCCh. 12 - Prob. 7RCCCh. 12 - Prob. 8RCCCh. 12 - Prob. 9RCCCh. 12 - Prob. 10RCC
Ch. 12 - Prob. 11RCCCh. 12 - Prob. 12RCCCh. 12 - Why do nonpolar substances boil at relatively low...Ch. 12 - Which has a greater degree of symmetry-a polar...Ch. 12 - Why dont oil and water mix?Ch. 12 - Prob. 16RCCCh. 12 - What is a hydrogen bond?Ch. 12 - Are induced dipoles permanent?Ch. 12 - What happens to the volume of a sugar solution as...Ch. 12 - Prob. 20RCCCh. 12 - Is concentration typically given with the volume...Ch. 12 - Why does the solubility of a gas solute in a...Ch. 12 - Why do sugar crystals dissolve faster when...Ch. 12 - Is sugar a polar or nonpolar substance?Ch. 12 - Do metals more readily gain or lose electrons?Ch. 12 - What is an alloy?Ch. 12 - What is a native metal?Ch. 12 - Prob. 28TISCh. 12 - Prob. 29TISCh. 12 - How is a solution different from a suspension?Ch. 12 - Prob. 36TCCh. 12 - Prob. 37TCCh. 12 - Rank the following in order of increasing...Ch. 12 - Rank the following in order of decreasing boiling...Ch. 12 - Rank these solutions in order of increasing...Ch. 12 - Rank the following compounds in order of...Ch. 12 - Prob. 42TSCh. 12 - Prob. 43TSCh. 12 - Prob. 44TSCh. 12 - How much sodium chloride, in grams, is needed to...Ch. 12 - If water is added to 1mole of sodium chloride in a...Ch. 12 - Prob. 47TECh. 12 - Prob. 48TECh. 12 - How many more electrons can fit within the valence...Ch. 12 - Prob. 50TECh. 12 - What happens when hydrogens electron gets close to...Ch. 12 - Why does an atom with few valence electrons tend...Ch. 12 - Why it is so easy for a magnesium atom to lose two...Ch. 12 - Why doesnt the neon atom tend to lose or gain any...Ch. 12 - Sulfuric acid, H2SO4, loses two protons to form...Ch. 12 - Prob. 56TECh. 12 - Which should be more difficult to pull apart: a...Ch. 12 - Given that the total number of atoms on our planet...Ch. 12 - Prob. 59TECh. 12 - Two fluorine atoms join together to form a...Ch. 12 - How are metallic bonds similar to ionic bonds? How...Ch. 12 - What drives an atom to form a covalent bond: its...Ch. 12 - Atoms of nonmetallic elements form covalent bonds,...Ch. 12 - Prob. 64TECh. 12 - Prob. 65TECh. 12 - Prob. 66TECh. 12 - In each molecule, which atom carries the greater...Ch. 12 - Which is more polar: a sulfur-bromineS-Br bond or...Ch. 12 - True or False: The greater the nuclear charge of...Ch. 12 - True or False: The more shells in an atom, the...Ch. 12 - Water, H2O, and methane, CH4, have about the same...Ch. 12 - Circle the molecule from each pair that should...Ch. 12 - Three kids sitting equally apart around a table...Ch. 12 - Why is the oxygen atom of a water molecule...Ch. 12 - Look to the molecules listed in Table 12.2. How...Ch. 12 - Which is stronger: the covalent bond that holds...Ch. 12 - The charges with sodium chloride are all...Ch. 12 - Prob. 78TECh. 12 - Prob. 79TECh. 12 - Why is calcium fluoride, CaF2, a high melting...Ch. 12 - Of the two structures shown here, one is a typical...Ch. 12 - Mixtures can be separated into their components by...Ch. 12 - Why cant the elements of a compound be separated...Ch. 12 - Many dry cereals are fortified with iron, which is...Ch. 12 - Classify the following as element, compound, or...Ch. 12 - Which of the following boxes best represents a...Ch. 12 - Which is more dense: air saturated with water...Ch. 12 - How many sugar molecules are there in a 2M sugar...Ch. 12 - Prob. 89TECh. 12 - Which should weigh more: 100mL of fresh water or...Ch. 12 - Prob. 91TECh. 12 - The boiling point of 1, 4-butanediol is 230C....Ch. 12 - Based on atomic size, which would you expect to be...Ch. 12 - If nitrogen, N2, were pumped into your lungs at...Ch. 12 - Prob. 95TECh. 12 - Account for the observation that ethanol, C2H5OH,...Ch. 12 - At 10C, which is more concentrated: a saturated...Ch. 12 - Why is rain or snow called precipitation?Ch. 12 - Hydrogen chloride HCl is a gas at room...Ch. 12 - Some bottled water is now advertised as containing...Ch. 12 - Two plastic bottles of fresh seltzer water are...Ch. 12 - Would you expect to find more dissolved oxygen in...Ch. 12 - What should be done with mining pits after all...Ch. 12 - What are some of the obstacles people face when...Ch. 12 - Oxygen, O2, dissolves quite well within a class of...Ch. 12 - Prob. 1RATCh. 12 - Prob. 2RATCh. 12 - Why are ores so valuable? a They are sources of...Ch. 12 - In terms of the periodic table, is there an abrupt...Ch. 12 - When nitrogen and fluorine combine to form a...Ch. 12 - Prob. 6RATCh. 12 - Someone argues that you shouldnt drink tap water...Ch. 12 - Prob. 8RATCh. 12 - Fish dont live very longer in water that has just...Ch. 12 - Prob. 10RAT
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- During inspiration, the volume of the lungs is actively increased by the action of the diaphragm. As the volume of the lungs increases, the pressure within the lungs falls about 1 mmHg below atmospheric pressure. Air rushes into the lungs due to this pressure difference. Bronchi, Bronchial Tree, and Lungs Larynx Primary bronchi Secondary bronchi Tertiary bronchi Bronchioles Cardiac notch Pulmonary artery Trachea Pulmonary vein Alveolar duct Alveoli This image is part of the Public Domain: https://upload.wikimedia.org/wikipedia/commons/d/db/Illu_bronchi lungs.jpg Fig. 1: The bronchi, bronchial trees, and the lungs. (a) The diameter of the trachea (windpipe) is about 17 mm. What net force does the air experience during inhalation? F = 0.03026 N net L (b) The flow rate of air entering the lungs is about 1.1 . What is the velocity of air moving S through the windpipe? ст windpipe 398.31 Sarrow_forwardYou are an astronaut exploring a new planet in a distant solar system. This planet has an atmospheric pressure of 3,040 mm Hg at sea level. The oxygen content of the planet’s air is 15%. What is the partial pressure of oxygen on this planet at sea level?arrow_forwardA blood platelet drifts along with the flow of blood through an artery that is partially blocked. As the platelet moves from the narrow region into the wide region, the blood pressure will increase, decrease or stay the same? Explain your answer.arrow_forward
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