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.
http://en.wikipedia.org/wiki/Lithium_nitride
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
You're welcome! I'm glad I could help. To clarify, the question is asking which substance would be a poor choice to use nitrogen gas with in a dry cell. Nitrogen gas is usually employed in dry boxes because it is an inert gas, meaning it does not easily react with other substances. The choices given are uranium metal, Cu/Sn alloys, Li metals, and Ca metals.
To determine which substance would be a poor choice, we need to consider how each substance would react with nitrogen gas.
Uranium metal, or U, forms three nitrides but not easily. However, it is important to note that U is not typically used in a dry cell, as it is a ceramic-like material used in uranium fuel rods.
Cu/Sn alloys, or copper-tin alloys, do not have a strong tendency to react with nitrogen gas. Copper and tin are generally considered non-reactive metals.
Calcium metal, or Ca, forms a nitride (Ca3N2) at elevated temperatures, such as when it burns in air. However, it is unlikely that Ca would be used in a dry cell.
Lithium metal, or Li, easily forms a nitride called lithium nitride (Li3N) and is used as an electrode in some batteries. Therefore, it would be a poor choice to use nitrogen gas with lithium metal in a dry cell, as it could potentially react to form lithium nitride.
Based on this information, the answer would be C) Li metals, as it would be a poor choice to use nitrogen gas with lithium metal in a dry cell.