which term best describes the role of chlorine free radicals in this process?
the equations are one way, so therefore the examiners did not intend for people to view it as a catalyst, in other words, this reaction GOES TO COMPLETION
therefore, you can ignore anything about increased yield etc.
a catalyst decreases the activation energy of a reaction, often by providing an alternate mechanism for the reaction
yes ozone plus oxygen radical reaction does occur, as does ozone decomposing to oxygen radical and oxygen gas, and then oxygen radicals can react with each other to form oxygen gas
in both cases o3+o=2o2
the chlorine radical process does the same thing but provides an alternate mechanism with a lower activation energy
catalysts can increase the yield of reactions, in that say the activation energy of a reaction was 1000kj and you could only supply 800 then the reaction could not occur-ie no yield
however if you add the catalyst, then u decrease the activation energy, allowing it to occur
plus aas is definitely d
when electrons are excited in a flame test, they will emit a few wavelengths of light. this is known as their emission spectrum.
aas uses one of the wavelengths emitted, and analyses HOW MUCH is absorbed
THEREFORE, C IS WRONG FOR 2 REASONS
one, it is not white light, otherwise the same lamp could be used for any cation
two, you don't see which one is absorbed, you choose the wavelength that you think might be absorbed and measure how much is absorbed. answer c implies a qualitative experiment, not a quantitative one which aas is