What is true about CFC's: a) very reactive chemicals. b) Generally unreactive, but deecompose when exposed to solar radiation. c) CFC's are contaminating ground water. d) directly react with ozone. e) More CFC's are in use now than ever before
2007-08-23 09:35:07 · 2 answers · asked by BlanketyBlank 4 in Science & Mathematics ➔ Chemistry
They are very unreactive and this is one of the reasons they are used in refrigeration.
They will decompose under exposure to uv (e.g. sunlight) but this is not an instantaneous or rapid degredation.
Cloro fluroro carbons that are commonly used in refrigeration are gases at atmospheric pressure so they are in the vapor state and not going to markeldy contaminate ground water BUT many environmental extremists will claim this to further their agenda.
Many materials "directly react with ozone" including gasoline, paints, plastics, organic emissions from pine trees, etc. Many environmental extremists want you to believe only cfcs do this but that is just NOT accurate.
I do not know whether the cfc replacemenet programs of the past few years have caused a decrease in their use.
2007-08-23 09:47:47 · answer #1 · answered by GTB 7 · 1⤊ 0⤋
b - it's the big problem in the upper atmosphere.
2007-08-23 16:46:31 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋