Science, asked by t2isbcanupriyasee, 1 year ago

Which gas is used to fill electric bulb?why

Answers

Answered by Johny4237
1
argon. because it is less reactive than other gases
Answered by Harchintan
1
You can't fill a bulb with air or hot tungsten wire will combust in presence of oxygen. You can't maintain vacuum either or external atmospheric pressure will break the glass. So, u have to fill it with non-reactive gas like nitrogen.
While nitrogen does react with hydrogen to form ammonia, the process is very difficult. It needs a VERY large amount of heat & a catalyst (usually Raney nickel) & yet, the yield is only 50%. You can look up Haber process in wiki or google for more details.
We can use inert gases like argon or helium instead of N, but they are more espensive & rarer than nitrogen.

hope it helps u
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