posted by blobface
Nitrogen gas, N2, is usually a very inert gas and thus, is often employed in dry boxes. However, it would be a poor choice for use in a dry cell with which of the following substances?
A) uranium metal
B) Cu/Sn alloys
C) Li metals
D) Ca metals
E) none of these
can anyone help me please?
This question is tough. U forms three nitrides but not easily AND I don't know that U is be used in a dry cell. It is a ceramic like material and is used in uranium fuel rods.
Ca metal forms a nitride, also, at elecvated temperature; for example, when Ca burns in air some Ca3N2 is formed along with CaO. However, I don't know that Ca is used in a dry cell.
Li form a nitride, Li3N, quite easily and is used as an electrode in some batteries. I would choose this one as an answer for the question since we know that Li is used in batteries.
does the fact that lithium and nitride bond to form LiN3 easily mean its a good choice or bad choice for dry cell? the question asked which would be a poor choich to use nitrogen gas in for a dry cell?
I think it would be a poor choice because the Li might react with the N2 gas to form the Li3N. I'm just making an educated guess.
ok i see your point thank you so much