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Gas is odorized ( mercaptans ) which can be detected at a ppb level. The great majority of people notice the smell and take some corrective action. On the otherhand ,whenever you make something fool proof , a bigger fool comes along ; so there are occasional fires caused by gas leaks. Driving a car is a higher risk that having gas in a home or apartment ...


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The vaporization and dissolution of gases out of and into, respectively, of water is a dynamic equilibrium, meaning that gases are continually coming out of solution, and re-entering. We may assume that water that has been sitting for some time has reached its dynamic equilibrium point, of a certain quantity of dissolved gases for a fixed mass of water, ...


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"negative pressure downstream, dissolved gases coming out" - this is correct, and that's a great video showing it. It's called cavitation in some contexts. The question of at what pressure this happens has three parts, as far as I understand it. (1) The local temperature and pressure (i.e. resulting from valve action) need to be such that you are ...


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Well, technically you would use absorbent like Ca(OH)2 and weight it, to measure how much CO2 you got, through a CO2 permeable membrane to avoid H2O. But in your case its much simpler to just weight the canister before and after. That is, you put a canister on a scale, write down the result, use the canister till its empty, put it on a scale again, write ...


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