JEE Main Chemistry question

ChemistryEquilibriumJEE Main

One mole of nitrogen is mixed with three moles of hydrogen in a closed 3 litre vessel. 20% of nitrogen is converted into NH₃. Then Kc for ½N₂+3/2H₂⇌NH₃ is:

Answer: (A)

Solution

N₂=0.8, H₂=2.4, NH₃=0.4 mol in 3 L: [N₂]=0.267,[H₂]=0.8,[NH₃]=0.133. Kc=0.133/(0..5×0..5)=0.36.

Question ID VK-136126