19. Given the following chemical equilibria, N2(g) + O2(g) 2 NO(g)K1 N2(g) + 3 H2(g) 2NH3(g)K2 H2(g) + O2(g) H2O(g)K3 Determine the method used

19. Given the following chemical equilibria,
N2(g) + O2(g)    2 NO(g)K1
N2(g) + 3 H2(g)  2NH3(g)K2
H2(g) + ½ O2(g)  H2O(g)K3

Determine the method used to calculate the equilibrium constant for the reaction below.
4 NH3(g) + 5 O2(g) 4NO(g)+6 H2O(g)     K c  

Answer: _____


20. Assume that the following endothermic chemical reaction is at equilibrium.
C(s) + H2O(g)    H2(g) + CO(g)
Which of the following statements is/are CORRECT?
1.Increasing the concentration of H2(g) will cause the reaction to proceed in the backward direction, increasing the equilibrium concentration of H2O(g).
2.Decreasing the temperature will cause the reaction to proceed in the forward direction, increasing the equilibrium concentration of CO(g).
3.Increasing the amount of C(s) will cause the reaction to proceed in the forward direction, increasing the equilibrium concentration of CO(g).



a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3