Domanda del libro di testo
On a climb up Mount Whitney, the atmospheric pressure drops to 467 mmHg. What is the pressure in terms of the following units?
d. Pa
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Ch.8 Gases
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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TOC.tableOfContents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Non è quello che usi tu?Cambia libro di testo
Capitolo 8, Problema 24c
Use the words inspiration and expiration to describe the part of the breathing cycle that occurs as a result of each of the following:
c. The pressure within the lungs is higher than that of the atmosphere.
Guida verificata passo dopo passo1
Understand the terms: 'Inspiration' refers to the process of inhaling air into the lungs, while 'Expiration' refers to the process of exhaling air out of the lungs.
Recall the relationship between pressure and airflow: Air moves from areas of higher pressure to areas of lower pressure.
Analyze the given condition: The problem states that the pressure within the lungs is higher than that of the atmosphere.
Determine the direction of airflow: Since the pressure inside the lungs is greater than the atmospheric pressure, air will flow out of the lungs to equalize the pressure difference.
Conclude the phase of the breathing cycle: The process of air leaving the lungs corresponds to 'Expiration.'
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Inspiration
Inspiration is the process of inhaling air into the lungs, which occurs when the diaphragm contracts and the thoracic cavity expands. This expansion decreases the pressure within the lungs compared to the atmospheric pressure, allowing air to flow in. It is a crucial part of the breathing cycle that facilitates the intake of oxygen necessary for cellular respiration.
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Percorso guidato
4:09
The Urea Cycle Concept 8
Expiration
Expiration is the process of exhaling air from the lungs, which happens when the diaphragm relaxes and the thoracic cavity decreases in volume. This reduction in volume increases the pressure within the lungs, causing air to flow out into the atmosphere. It is essential for removing carbon dioxide from the body, maintaining the balance of gases in the respiratory system.
Pressure Gradient
A pressure gradient refers to the difference in pressure between two areas, which drives the movement of air during breathing. When the pressure in the lungs is higher than the atmospheric pressure, air is expelled from the lungs during expiration. Understanding this concept is vital for grasping how air flows in and out of the respiratory system based on pressure differences.
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01:15Pressure Units Concept 1
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On a climb up Mount Whitney, the atmospheric pressure drops to 467 mmHg. What is the pressure in terms of the following units?
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