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Coffee, Popcorn, and Oxygen Cylinders: The Ideal Gas Law

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Physics for Anesthesiologists and Intensivists
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Abstract

The ideal gas law correlates pressure, volume, and temperature of an ideal gas with one another. As discussed in this chapter, the moka coffee maker works according to this law and popcorn is also made thanks to it; the same physical principle allows to calculate the reserve of oxygen in a cylinder based on the pressure inside it; similarly, volume and pressure of a tracheal tube cuff are affected by both temperature and altitude and, accordingly, adjustments of cuff inflation may be needed (at least theoretically) during intraoperative deep hypothermia or helicopter transportation of intubated patients in order to avoid leakage or tracheal injury, respectively; finally, divers must be very familiar with the behavior of gases to avoid decompression illness, and pressure and volume changes similar to those causing this potentially severe disease during a dive may also be responsible for earache (or other more embarrassing troubles) during an airplane flight.

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References

  1. Navarini L, Nobile E, Pinto F, Scheri A, Suggi-Liverani F. Experimental investigation of steam pressure coffee extraction in a stove-top coffee maker. Appl Therm Eng. 2009;29:998–1004.

    Article  CAS  Google Scholar 

  2. Gianino C. Experimental analysis of the Italian coffee pot “Moka”. Am J Phys. 2007;75(1):43–7.

    Article  Google Scholar 

  3. Czerski H. Storm in a teacup: the physics of everyday life. New York: W. W. Norton & Company; 2018. p. 13–5.

    Google Scholar 

  4. Anand AC, Sashindran VK, Mohan L. Gastrointestinal problems at high altitude. Trop Gastroenterol. 2006;27(4):147–53.

    CAS  PubMed  Google Scholar 

  5. Auerbach P, Miller YE. High altitude flatus expulsion (HAFE). West J Med. 1981;134(2):173–4.

    CAS  PubMed  PubMed Central  Google Scholar 

  6. Wagner W, Ewers J, Pentermann W. New vapour-pressure measurements and a new rational vapour-pressure equation for oxygen. J Chem Therm. 1976;8(11):1049–60.

    Article  CAS  Google Scholar 

  7. Vann RD, Butler FK, Mitchell SJ, Moon RE. Decompression illness. Lancet. 2011;377(9760):153–64.

    Article  Google Scholar 

  8. Bennett MH, Lehm JP, Mitchell SJ, Wasiak J. Recompression and adjunctive therapy for decompression illness: a systematic review of randomized controlled trials. Anesth Analg. 2010;111(3):757–62.

    Article  CAS  Google Scholar 

  9. Weaver LK. Hyperbaric oxygen in the critically ill. Crit Care Med. 2011;39(7):1784–91.

    Article  CAS  Google Scholar 

  10. Pisano A. Pitfalls from physics: why we can’t “feel” the tube cuff pressure with our fingers. Anesth Analg. 2017;124(4):1368.

    Article  Google Scholar 

  11. Pisano A, Verniero L, Galdieri N, Corcione A. Assessing the correct inflation of the endotracheal tube cuff: a larger pilot balloon increases the sensitivity of the ‘finger-pressure’ technique, but it remains poorly reliable in clinical practice. J Clin Monit Comput. 2019;33(2):301–5.

    Article  Google Scholar 

  12. Souza Neto EP, Piriou V, Durand PG, et al. Influence of temperature on tracheal tube cuff pressure during cardiac surgery. Acta Anaesthesiol Scand. 1999;43(3):333–7.

    Article  CAS  Google Scholar 

  13. Kako H, Alkhatib O, Krishna SG, et al. Changes in intracuff pressure of a cuffed endotracheal tube during surgery for congenital heart disease using cardiopulmonary bypass. Paediatr Anaesth. 2015;25(7):705–10.

    Article  Google Scholar 

  14. Rubes D, Klein AA, Lips M, et al. The effect of adjusting tracheal tube cuff pressure during deep hypothermic circulatory arrest: a randomised trial. Eur J Anaesthesiol. 2014;31(9):452–6.

    Article  Google Scholar 

  15. De Hert S, De Baerdemaker L. Randomised controlled trials: are we looking at treatment effects or absence of good clinical practice in control groups? Eur J Anaesthesiol. 2014;31(9):450–1.

    Article  Google Scholar 

  16. Delorenzo AJ, Shepherd M. Jennings PA. Endotracheal cuff pressure changes during helicopter transport: a systematic review. Air Med J. 2017;36(2):81–4.

    Google Scholar 

  17. Orsborn J, Graham J, Moss M, et al. Pediatric endotracheal tube cuff pressures during aeromedical transport. Pediatr Emerg Care. 2016;32(1):20–2.

    Article  Google Scholar 

  18. Weisberg SN, McCall JC Jr, Tennyson J. Altitude-related change in endotracheal tube cuff pressures in helicopter EMS. West J Emerg Med. 2017;18(4):624–9.

    Article  Google Scholar 

  19. Tennyson J, Ford-Webb T, Weisberg S, LeBlanc D. Endotracheal tube cuff pressures in patients intubated prior to helicopter EMS transport. West J Emerg Med. 2016;17(6):721–5.

    Article  Google Scholar 

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Pisano, A. (2021). Coffee, Popcorn, and Oxygen Cylinders: The Ideal Gas Law. In: Physics for Anesthesiologists and Intensivists. Springer, Cham. https://doi.org/10.1007/978-3-030-72047-6_2

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  • DOI: https://doi.org/10.1007/978-3-030-72047-6_2

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