ICE Table:
Equilibrium constant expression is
Kp = p(N2)*p(O2)/p(NO)^2
1.32 = (1*x)^2/(3.81*10^-3-2*x)^2
sqrt(1.32) = (1*x)/(3.81*10^-3-2*x)
1.14891 = (1*x)/(3.81*10^-3-2*x)
4.377*10^-3-2.298*x = 1*x
4.377*10^-3-3.298*x = 0
x = 0.00133
At equilibrium:
p(NO) = 0.00381-2x = 0.00381-2*0.00133 = 0.00116 atm
p(N2) = +1x = +1*0.00133 = 0.00133 atm
p(O2) = +1x = +1*0.00133 = 0.00133 atm
Answer:
p(NO) = 0.00116 atm
p(N2) = 0.00133 atm
p(O2) = 0.00133 atm
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