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Grade: 12
        
 1 mole of N2 and 4 mole of H2 are allowed to react in a vessel and after reaction H2O is added, the aqua solution required one mole of HCL of neutralization then mole fraction of H2 in the remaining gaseous mixture after reaction is-
A 1/6
B 5/6
C 1/3
D none of these
11 months ago

Answers : (4)

Arun
22570 Points
							
Dear Ayush
 
I am getting my answer as 5/6. i.e. option B.
 
Hope it helps
Regards
Arun (askIITians forum expert)
11 months ago
Ayush Mittal
12 Points
							
Can You show the concept you applied and the complete steps involved in the solving the answer.
please respond as soon as possible.
11 months ago
Arun
22570 Points
							
Only 1 mole of NH3 gas is formed
 
Solution requires 1 mole of HCl and hence only 1 mole of NH3 is required.
 
HCl     +     NH3     ----->   NH4Cl
1 mole       1 mole
 
For NH3 formation
                        N2 +       3 H2 ------->      2 NH3
Initial moles    1 .          4.                         0
Final mole      1-x          4 -3x                    2x
 
2x = 1
 
Hence x = 0.5
 
Mole fraction of H2 gas in final mixtire
 
 = 2.5 /(0.5 + 2.5) = 2.5 /3 = 5/6
11 months ago
Ayush Mittal
12 Points
							
Thank you iitian for my help. It will surely prove a great help to me. Thank you for your effort .
Regards .
11 months ago
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