Expired gas

... using a douglas bag and analysing it at a computer) and then the gas volume of expired air which was 21.3L...and breaths per minute was 21 and then we had to measure respiratory ...

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... it gets soluble in the mucous layer of alveoli.......simultaneously the gas to be expired is rich in CO2 and hence the partial pressure of CO2(pCO2) is much more in the gas ...

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