Question

Total lung capacity of a typical adult is approximately 5.0L. Approximately 20% of the air is oxygen, as air is 20% oxygen. At sea level and at anaverage body temperature of 37°C. How many moles ofoxygen do the lungs contain at the end of an inflation?

Answer 1

n=0.03928 moles

Moles of oxygen do the lungs contain at the end of an inflation are 0.03928 moles

Step-by-step explanation:

The amount of oxygen which lung can have is 20% of 5 L which is the capacity of lungs

Volume of oxygen in lungs =V=5*20%= 1 L=
`1*10^(-3) m^3`

Temperature=T=
`37^oC=273+37=310K`

Pressure at sea level = P= 1 atm=
`1.0125*10^5 Pa`

R is universal Gas Constant =8.314 J/mol.K

Formula:

`n=(PV)/(RT)\\n=((1.0125*10^5) *(1*10^(-3)))/((8.314)*310) \\n=0.03928 mol`

Moles of oxygen do the lungs contain at the end of an inflation are 0.03928 moles