For each of the following equilibria, write the equilibrium constant expression for Kc. Where appropriate, also write the equilibrium constant expression for Kp.
WO₃(s)+3H₂(g)? W(s)+3H₂O(g)
a. Kc=[H₂]₃[H₂O]₃
b. Kc=[H₂O]₃[W][H₂]₃[WO₃]
c. Kc=[H₂O]3[H₂]₃
d. Kc=[H₂]₃[WO₃][H₂O]₃[W]