Consider the following reactions:  N2(g) + 3H2(g) → 2NH3(g) …

Consider the following reactions:  N2(g) + 3H2(g) → 2NH3(g) An equilibrium mixture at 450 K contains  PN2 = [x] atm,  PH2 = [y] atm, and  PNH3 = [z] atm.  What is the value of K p at this temperature? Report your answer with the correct number of significant figures.