# ideal gas law

Measurement and estimation of shunt » The shunt equation, otherwise known as the Berggren equation, is used to calculate the shunt fraction. This yields Qs/Qt, the ratio of the shunt and the total cardiac output. The estimated shunt fraction (Fshunte) can be calculated if an assumed value is substituted for CvO2) in the Berggren equation "True" shunt can be identified if the subject is made to breathe 100% FiO2, which decreases the contribution from V/Q scatter (with 100% FiO2, the measured shunt fraction is the "true" intrapulmonary shunt). Derangedphysiology.com

What are the units used for the ideal gas law? | Socratic » The equation for the Ideal Gas Law is: PV = nRT On the whole, this is an easy equation to remember and use. The problems lie almost entirely in the units. SI units Pressure, P Pressure is measured in pascals ("Pa") — sometimes expressed as newtons per square metre ("N·m"^"-2"). These mean exactly the same thing. Be careful if you are given pressures in kilopascals ("kPa"). For example, "150 kPa = 150 000 Pa". You must make that conversion before you use the ideal gas law. The bar is “almost” an SI unit. "1 bar = 100 kPa = 100 000 Pa" Volume, "V" This is one place for you to go wrong when you use the Ideal Gas Law. That's because the SI base unit of volume is the cubic metre ("m"^3) — not "cm"^3 or "dm"^3 or "L". "1 m"^3 = "1000 dm"^3 = "1000 L" = 10^6 "cm"^3 = 10^6 "mL" Thus, if you are inserting values of volume into the equation, you first have to convert them into cubic metres. Number of moles, n This is easy, of course — the units are "mol". The gas constant, R You will usually be given the val Socratic.org

Table 1 Demographic make up of the population and sample » Download Table | Demographic make up of the population and sample from publication: The Use of Online Modules and the Effect on Student Outcomes in a High School Chemistry Class | The purpose of the study was to review the efficacy of online chemistry simulations in a high school chemistry class and provide discussion of the factors that may affect student learning. The sample consisted of 351 high school students exposed to online simulations.…| High School, Instructional Technology and Attitudes | ResearchGate, the professional network for scientists. Researchgate.net

1.6 Mathematical Treatment of Measurement Results - Chemistry 2e | OpenStax » A ratio of two equivalent quantities expressed with different measurement units can be used as a unit conversion factor. For example, the lengths of 2.5… Openstax.org

The Science of Popcorn » Introduction Popcorn is one of the world’s favorite snack foods. In the US, Americans consume as much as 18 billion quarts of… Knowledge.carolina.com

Common respiratory equations » The 2017 CICM Primary Syllabus expects the exam candidates to be able to "Understand the common respiratory equations", but does not elaborate as to what these are. This list is compiled from past paper questions and from the syllabus document, but represents pure speculation on the author's part. The only essential equation is the alveolar gas equation. Derangedphysiology.com