Dry trees, shrubs, and other vegetation as well as lightening strikes.
Because Celcius is a larger amount than Fahrenheit. The units are farther apart.
3Si + 2N2 --> Si3N4 (as given)
n(Si) = m/MM = 38.25/28.085 = 1.3619 mol
n(N2) = 14.33/2*14.007 = 0.5115 mol
Therefore, N2 is limiting and Si is in excess
The molar ratio of 2N2:Si3N4 is 2:1
So, 0.0575 mol of silicon nitride is formed (dividing 0.5115 by 2)
m of silicon nitride= n*mm = 0.0575*140.283 = 8.06627... g
= 8.066g (4 significant figures)
(hopefully it is right, but double check in case i did something wrong) :)
If you meant the word silicon then yes, silicon is a semiconductor and its ability to conduct gets better as the temp. rises
Direction and speed. Hope it helps
