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Gas Laws and Kinetic Molecular Theory (4B) Practice Test
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Q1
A physiological model treats inhaled air as an ideal gas. During inspiration, thoracic expansion increases lung volume while temperature and moles are approximately constant over a short interval. The question targets Boyle’s law.
What effect would an increase in lung volume most likely have on alveolar pressure (relative to atmospheric) during this interval?
A. Alveolar pressure increases above atmospheric
B. Alveolar pressure decreases below atmospheric
C. Alveolar pressure remains equal to atmospheric
D. Alveolar pressure becomes independent of volume because $R$ is constant
A physiological model treats inhaled air as an ideal gas. During inspiration, thoracic expansion increases lung volume while temperature and moles are approximately constant over a short interval. The question targets Boyle’s law.
What effect would an increase in lung volume most likely have on alveolar pressure (relative to atmospheric) during this interval?
A. Alveolar pressure increases above atmospheric
B. Alveolar pressure decreases below atmospheric
C. Alveolar pressure remains equal to atmospheric
D. Alveolar pressure becomes independent of volume because $R$ is constant