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Q.

Consider the following reaction in a 1 L closed vessel. N2+3H2⇌2NH3 If all the species; N2H2 and NH3 are in 1 mole in the beginning of the reaction and equilibrium is attained after unreacted N2 is 0.7 moles. What is the value of the equilibrium constant?

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a

1828.57

b

2657.14

c

3600.00

d

3657.14

answer is B.

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Detailed Solution

N2+3H2⇌2NH3

In: 1    1              1

1-x  1-3x  2x+1

at c2N2=1-x=0.7

⇒  x=0.3

NH3=1+2(0.3)=1.6

 Kc =1.6×1.60.7×0.1×0.1×0.1  =256×107  =3657.14 

Hence the correct answer (B) 3657.14

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