JimC
Contributor
Assume we are at a constant environmental presure (sea level) for all of this.
Suppose a bag (your lungs) is attached to a fairly long hot tube (your wind pipe) and at 37C it takes 1 unit of gas to inflate the bag. This tube is attached via a presure control device (regulator) to a tank with 10 units of gas mesured at 37C. The tank only has the volume for 1 unit of gas at 37C, so the gas is under presure (10atm).
Say this tank is cooled to 10C. The presure will decrease in the tank according to the gas laws. We manipulate the presure control device to release some gas, enough gas to fill the bag. That gas is warmed along the way and expands (gas laws).
Say we have another tank at 20C. The same procedure happens. Did more or less gas come from the tank? No, the bag still has the same 1 unit volume, and the gas is still warmed to the same 37C temp.
Do they both get the same # of breaths?
How much gas are the removing from the tank with each breath?
Does that make sense?
That is an ideal world. In the real world, the gas is not completely warmed, the bag is elastic, its volume can be controlled, the regulator has resistance, the gas takes energy to warm, etc..
Would there be a diference, yes.. but not much, and likely not mesurable.
Suppose a bag (your lungs) is attached to a fairly long hot tube (your wind pipe) and at 37C it takes 1 unit of gas to inflate the bag. This tube is attached via a presure control device (regulator) to a tank with 10 units of gas mesured at 37C. The tank only has the volume for 1 unit of gas at 37C, so the gas is under presure (10atm).
Say this tank is cooled to 10C. The presure will decrease in the tank according to the gas laws. We manipulate the presure control device to release some gas, enough gas to fill the bag. That gas is warmed along the way and expands (gas laws).
Say we have another tank at 20C. The same procedure happens. Did more or less gas come from the tank? No, the bag still has the same 1 unit volume, and the gas is still warmed to the same 37C temp.
Do they both get the same # of breaths?
How much gas are the removing from the tank with each breath?
Does that make sense?
That is an ideal world. In the real world, the gas is not completely warmed, the bag is elastic, its volume can be controlled, the regulator has resistance, the gas takes energy to warm, etc..
Would there be a diference, yes.. but not much, and likely not mesurable.