4. A study of the ammonia synthesis at 450°C, N₂ + 3H2 → 2NH3, shows that the rate increases by a factor of 9 when the
partial pressure of hydrogen is tripled and the nitrogen pressure is kept constant. The rate increases by a factor of 27 when
the partial pressure of nitrogen is tripled and the hydrogen is kept constant. (a) Find the rate law for the reaction. (B) How
will the rate change if the hydrogen and nitrogen are both doubled?
