Is there solid oxygen, solid nitrogen, etc. etc.? If so what's it used for? If not is it because we don't have the technology or is it because the solid form is useless?
2007-01-18 07:38:59 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Yes, CO2 used for dry ice.... of course.
But why do you hear about liquid nitrogen, but not solid, liquid oxygen but not solid, liquid hydrogen but not solid... etc. Just curious. Nitrogen would be cheaper to use for dry ice I bet... or even air for that matter...
2007-01-18 07:47:19 · update #1
carbon dioxide makes dry ice!!!
2007-01-18 07:42:15 · answer #1 · answered by The Cheminator 5 · 0⤊ 0⤋
The freezing point of the other gases is much lower than CO2. So, it's relatively easy to make liquid nitrogen and liquid oxygen, but solidifying them is much more difficult because of the very low freezing points.
2007-01-18 15:51:35 · answer #2 · answered by hcbiochem 7 · 0⤊ 0⤋
the second answer is correct but there is another factor. you must look at the phase diagram for CO2. It doesnt exsist under normal conditions as a liquid only at very high pressures. That is true of other gases too. sometimes you need pressure to create a change of state as well as temperature.
2007-01-18 16:25:13 · answer #3 · answered by skipper 5 · 0⤊ 0⤋
Because we are not able to create the temps required for o2 and n2 to solidify.
Co2 has a higher freeze point than o2, or n2.
2007-01-18 16:27:41 · answer #4 · answered by motors2005_tk 2 · 0⤊ 0⤋