Chemical and Ionic Equilibrium - Result Question 21

####21. For the reversible reaction,

N2(g)+3H2(g)2NH3(g)

at 500C, the value of Kp is 1.44×105 when partial pressure is measured in atmosphere. The corresponding value of Kc with concentration in mol/L is

(2000,5,1M)

(a) 1.44×105(0.082×500)2

(b) 1.44×105(8.314×773)2

(c) 1.44×105(0.082×773)2

(d) 1.44×105(0.082×773)2

Show Answer

Solution:

  1. N2(g)+3H2(g)2NH3(g)

Δn=2

Kp=Kc(RT)Δn Kc=Kp(RT)Δn=1.44×105(0.082×773)2



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