The decomposition of ammonia is: 2 nh3(g) ? n2(g) + 3 h2(g). if kp is 1.5 × 103 at 400°c, what is the partial pressure of ammonia at equilibrium when n2 is 0.10 atm and h2 is 0.15 atm? the decomposition of ammonia is: 2 nh3(g) ? n2(g) + 3 h2(g). if kp is 1.5 × 103 at 400°c, what is the partial pressure of ammonia at equilibrium when n2 is 0.10 atm and h2 is 0.15 atm? 4.7 × 10-4 atm 2.2 × 10-7 atm 2.1 × 103 atm 4.4 × 106 atm