65, M, EE, vet, medically retired, opinionated. The picture ain't me, but it's great art, done in crayon. When I was younger I tried to roll the brim of my straw hat to look like this.
Since the manufacturer advertises the tubing as clear, flexible, vinyl tubing, I assume it to be plasticized PVC. When I change tubing it takes 48 to 96 hours to "passivate" the new tubing. During this time I experience severe headaches, irritated eyes, sinuses, and throat, and heightened anxiety and irritability. After about 4 days, this "newness" odor and the symptoms dissipate.
The only hard data I have on this process is that the O2 flowrate is 4 L/min. at 23 C and 1 atm, and that the tubing is 3/16 in. OD (probably 1/8 in. ID) and 30 ft long. (about 3 mm ID and 10 m long)
Is it possible with this scant data to estimate the quantity and type of gases being produced?2 AnswersChemistry1 decade ago
When I took Chemistry 1 mole of gas filled 22.4 L at 20°C and 760 mmHg (Torr.)2 AnswersChemistry1 decade ago
When we finally go into industrial production of hydrogen to power our vehicles we will be producing 8 tons of oxygen for every ton of hydrogen. Simply venting this to the atmosphere as industries are wont to do will produce serious hazards around the production plants, ranging from increased fire danger to plant toxicity to animal toxicity, depending on concentrations. Depending on diffusion and wind to dissipate the oxygen is the same mistake we've made throuought history with airborne pollutants.5 AnswersEnvironment1 decade ago
The Kinetic Theory of Gases yields a ratio of 47% N2 to 53% O2 if other gases are ignored and there is no voluminous chemical reaction between N and O.
I have my own pet answer, but I'm curious to see what answers others will give, and if any will agree with mine without coaching.8 AnswersChemistry1 decade ago