At equilibrium, the concentrations of N2=4.0 x10-3M, O2 = 5.2 x 10-3M and NO=3.9 10-3M in a sealed vessel at 800K. What will be Kc for the reaction?

At equilibrium, the concentrations of N2=4.0 x10-3M, O2 = 5.2 x 10-3M

1.	At equilibrium, the concentrations of N2=4.0 x10-3M, O2 = 5.2 x 10-3M and NO=3.9 10-3M in a sealed vessel at 800K. What will be Kc for the reaction?
A.	0.731
B.	0.073
C.	7.31
D.	0.0007
Answer» B. 0.073