How does the volume of air in the lungs change with temperature?

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SUMMARY

The volume of air in the lungs increases as the temperature rises from 0.0 °C to 37.0 °C due to the principles of gas laws, specifically Charles' Law. When a person inhales 4.1 L of air at 0.0 °C and holds their breath, the volume expands as it warms to body temperature. Assuming constant pressure, the final volume can be calculated using the relationship defined by Charles' Law, which states that the volume of a gas is directly proportional to its temperature in Kelvin.

PREREQUISITES
  • Understanding of Charles' Law
  • Basic knowledge of gas laws
  • Familiarity with temperature conversion (Celsius to Kelvin)
  • Concept of constant pressure in gas behavior
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  • Learn about the Ideal Gas Law and its implications
  • Explore temperature conversion techniques between Celsius and Kelvin
  • Investigate the effects of pressure changes on gas volume
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Students studying physics or chemistry, educators teaching gas laws, and anyone interested in the behavior of gases under varying temperature conditions.

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Homework Statement



After emptying her lung, a person inhales 4.1 L of air at 0.0 oC and holds her breath.
How much does the volume of the air increase as it warms up to her body temperature at 37 o?

Homework Equations


No equation through my notes I could find



The Attempt at a Solution


I figured in since the person is holding breath the volume doesn't change unless they were to release therefore keeping the volume at 4.1L
 
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I think you probably are intended to consider the pressure remaining constant at prevailing atmospheric pressure. The inhaled air expands as it warms, so that when you are about to exhale, you have more volume to empty.

You can use Charles' Law or the general gas law.
 
Last edited:

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