Ammonia under a pressure of 15 atm at 27°C is heated to 347°C in a closed vessel in the presence of a catalyst. Under the conditions, \[N{{H}_{3}}\] is partially decomposed according to the equation, \[2N{{H}_{3}}\]⇌ \[{{N}_{2}}+3{{H}_{2}}\].The vessel is such that the volume remains effectively constant whereas pressure increases to 50 atm. Calculate the percentage of \[N{{H}_{3}}\] actually decomposed. [IIT 1981; MNR 1991; UPSEAT 2001]

Ammonia under a pressure of 15 atm at 27°C is heated to 347°C in a c

1.	Ammonia under a pressure of 15 atm at 27°C is heated to 347°C in a closed vessel in the presence of a catalyst. Under the conditions, \[N{{H}_{3}}\] is partially decomposed according to the equation, \[2N{{H}_{3}}\]⇌ \[{{N}_{2}}+3{{H}_{2}}\].The vessel is such that the volume remains effectively constant whereas pressure increases to 50 atm. Calculate the percentage of \[N{{H}_{3}}\] actually decomposed. [IIT 1981; MNR 1991; UPSEAT 2001]
A.	0.65
B.	0.613
C.	0.625
D.	0.64
Answer» C. 0.625