Answer:
Kp = 26337.45
Explanation:
The equilibrium constant, Kp describes the ratio of product and reactant concentrations at equilibrium in terms of partial pressures.
For a gas-phase reaction,
aA(g) + bB(g) ⇋ cC(g) + dD(g)
the expression for Kp is:
Kp = (Pc^c * Pd^d) / (Pa^a * Pb^b)
In this reaction;
2H2O (g) ⇋ 2H2 (g) + O2 (g)
Kp becomes;
Kp = (Pc^c *) / (Pa^a * Pb^b)
Kp = 0.040^2 / (0.0045^2) * (0.0030^1)
Kp = 0.040^2 / (6.075e-8)
Kp = 26337.45
