Question

If the pressure of N2/H2 mixture in a closed apparatus is 100 atm and 20% of the mixture reacts,then the pressure at same temperature would be?

Answer 1

Answer:

20% mixture reacts to form 10%NH3 , Thus 80% mixture and 10%NH3 left or total pressure left =90atm since 100% mixture has 100at

Answer 2

Answer:

90 atm

Explanation:

N₂ + 3H₂ ⇒ 2NH₃

4 moles of reactant react to give 2 moles of NH₃

Thus 20% mixture gives 10% NH₃

Thus remaining amount of mixture = 100% - 20% = 80%

Total pressure is due to the individual partial pressures of mixture and NH₃

= 80% + 10% = 90%

Thus, 90% of 100 atm = 90 atm